Creative Diy: Building A Functional Lego Piggy Bank Step-By-Step

how to build a lego piggy bank

Building a LEGO piggy bank is a fun and creative project that combines the joy of LEGO construction with the practicality of saving money. Using basic LEGO bricks and a few clever techniques, you can design a sturdy and customizable piggy bank that not only holds coins but also adds a playful touch to your space. Whether you're a LEGO enthusiast or a beginner, this project allows you to personalize your creation with colors, shapes, and even a coin slot and removable lid. With step-by-step instructions and a bit of imagination, you’ll have a functional and charming piggy bank that’s perfect for teaching kids about saving or simply adding a whimsical DIY piece to your collection.

Characteristics Values
Difficulty Level Beginner to Intermediate
Age Recommendation 6+ (with adult supervision for younger children)
Time Required 30 minutes to 1 hour
LEGO Pieces Needed Varies depending on design, typically 50-200 pieces
Essential Pieces Bricks, plates, tiles, slopes, hinges, and a coin slot piece (or modified piece)
Tools Required LEGO bricks, building instructions (online tutorials or kits), coin (for testing slot size)
Design Variations Classic pig shape, rectangular box with pig face, customizable designs
Coin Slot Mechanism Hinged lid, sliding door, or removable piece
Stability Depends on design and building technique
Customization Options Color, size, additional features (e.g., eyes, ears, tail)
Cost Free (using existing LEGO collection) or cost of LEGO kit
Educational Value Encourages creativity, problem-solving, and fine motor skills
Popular Tutorial Sources YouTube, LEGO Ideas, Instructables, Pinterest

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Gathering Materials: Collect LEGO bricks, baseplate, and coins for your piggy bank construction

To begin building your LEGO piggy bank, the first step is to gather all the necessary materials. Start by collecting a variety of LEGO bricks in different sizes, shapes, and colors. You’ll need a mix of standard bricks, plates, and specialized pieces like slopes, tiles, and hinges to create the structure and details of the piggy bank. Ensure you have enough bricks to build a sturdy base, a hollow body for storing coins, and a lid or opening mechanism. If you’re aiming for a specific design, such as a pig shape, gather bricks that can help form rounded edges and features like ears, snout, and legs. Sorting your bricks by color and type beforehand can streamline the building process.

Next, acquire a LEGO baseplate to serve as the foundation for your piggy bank. A baseplate provides stability and ensures your creation remains intact. Choose a baseplate size that accommodates the dimensions of your piggy bank—a 10x10 or 16x16 stud baseplate is often sufficient for a medium-sized project. If you don’t have a baseplate, consider using a flat, sturdy surface made from interlocking bricks, but a baseplate is ideal for a clean and professional finish.

In addition to LEGO bricks and a baseplate, you’ll need a collection of coins to test and use your piggy bank once it’s complete. Gather a variety of coins in different denominations to ensure the coin slot and storage area are functional. This step is not only practical but also motivates you to envision the end goal of your project. If you plan to display the piggy bank, consider using fake coins or tokens for a polished look.

Optional but recommended materials include a LEGO Technic brick or hinge for creating a movable lid or door. This adds functionality to your piggy bank, allowing you to easily deposit and retrieve coins. Additionally, consider gathering LEGO tiles or smooth pieces to create a clean interior surface, making it easier for coins to slide in and out. If you want to personalize your piggy bank, collect extra bricks for decorative elements like eyes, a tail, or patterns on the body.

Finally, ensure you have a clear workspace and a small container or tray to keep your LEGO pieces organized during the building process. Having all materials within reach will make the construction smoother and more enjoyable. Once you’ve gathered your LEGO bricks, baseplate, coins, and optional components, you’re ready to move on to designing and building your unique LEGO piggy bank.

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Designing the Base: Build a sturdy baseplate foundation for stability and coin storage

To begin designing the base of your Lego piggy bank, start by selecting a suitable baseplate size. A standard 16x16 or 24x24 stud baseplate works well for most piggy bank designs, providing ample space for both stability and coin storage. Ensure the baseplate is flat and free from any warping or damage, as this will affect the overall structure. The baseplate will serve as the foundation for your piggy bank, so choose a color that complements your design – classic colors like white, gray, or black are versatile choices.

Next, focus on creating a sturdy framework for the base. Use 2x4, 2x6, or 2x8 bricks to build a perimeter around the edge of the baseplate, leaving a central open area for coin storage. Stack these bricks at least two layers high to add height and stability. For added strength, incorporate Lego Technic bricks or beams along the edges, as their studless design allows for a more secure connection. Ensure each layer is firmly attached to the baseplate and to each other, using techniques like offset stacking or adding cross-bracing with 1x2 or 1x4 bricks to prevent wobbling.

Incorporate a coin slot into the base design by leaving a small gap in the perimeter wall, typically on one of the shorter sides. Use 1x2 or 1x4 bricks to frame the slot, ensuring it’s wide enough for coins to pass through but narrow enough to maintain structural integrity. Reinforce the area around the slot with additional bricks or plates to prevent stress points that could weaken the base over time. Consider adding a small hinge or removable section nearby to allow for easy coin retrieval, though this feature should be carefully integrated to avoid compromising stability.

To maximize coin storage capacity, keep the central area of the baseplate as open as possible while maintaining a solid perimeter. If desired, add a shallow layer of 1x1 or 2x2 plates to the baseplate’s surface to create a smooth, even floor for the coins. Avoid overbuilding the interior, as this can reduce storage space and add unnecessary weight. The goal is to strike a balance between a robust structure and functional storage, ensuring the base can support the weight of the coins and the upper sections of the piggy bank.

Finally, test the stability of your base by gently pressing down on the edges and corners. If any areas feel weak or wobbly, reinforce them with additional bricks or plates. Ensure the base sits flat on a surface without rocking, as this will prevent tipping once the piggy bank is filled with coins. A well-designed base not only provides a strong foundation for the rest of your Lego piggy bank but also ensures it remains functional and durable over time. With a sturdy baseplate foundation in place, you’re ready to move on to designing the body and lid of your piggy bank.

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Creating the Body: Assemble the pig’s body using rounded LEGO shapes and colors

To begin creating the body of your LEGO piggy bank, start by selecting rounded LEGO bricks in shades of pink or light brown to achieve that classic piggy appearance. Look for curved or arched pieces that can mimic the natural shape of a pig’s body. Begin by laying a foundation using larger, flat, rounded bricks for the base. This will provide stability and serve as the starting point for building upwards. Ensure the base is wide enough to support the entire structure, as the piggy bank will need to hold coins and stay upright.

Next, focus on building the main body of the pig. Use rounded slopes and curved bricks to gradually taper the shape from the base upwards, creating a plump, oval-like form. Layer the bricks in alternating rows, ensuring each layer is slightly narrower than the one below it to achieve a rounded, three-dimensional effect. Incorporate smaller curved pieces to smooth out any sharp edges and give the pig a more organic, lifelike shape. Remember to leave an opening at the top of the body for the coin slot, which will be added later.

As you build, pay attention to color consistency. Use bricks of the same shade for a uniform look, or mix slightly varying tones of pink or brown to add depth and texture. For a more playful design, consider adding subtle patterns or accents using contrasting colors, such as white or black bricks for details like a belt or spots. Ensure the body is hollow inside to allow space for storing coins, but reinforce the structure with internal supports if needed to maintain stability.

Once the main body is complete, add the pig’s legs using shorter, rounded bricks. Attach these to the underside of the body, spacing them evenly to ensure the piggy bank stands firmly. Use curved or sloped bricks for the legs to maintain the rounded aesthetic. Double-check that the legs are sturdy and can support the weight of the body, especially when filled with coins. If necessary, reinforce the connection points with additional bricks for added strength.

Finally, smooth out any rough areas on the body by filling gaps or uneven spots with smaller rounded bricks. Step back and assess the overall shape, making adjustments as needed to ensure it looks balanced and pig-like. Once you’re satisfied with the body’s structure and appearance, you’re ready to move on to adding details like the head, ears, and coin slot, bringing your LEGO piggy bank one step closer to completion.

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Adding Features: Attach ears, nose, and a coin slot for functionality and charm

To add personality and functionality to your LEGO piggy bank, start by attaching the ears. Use two small, curved LEGO pieces, such as slopes or arches, in a light pink or white shade to mimic a pig’s ears. Position them symmetrically on the top sides of the pig’s head, ensuring they are securely attached to the base structure. Tilt them slightly outward to give a playful, lifelike appearance. If you want extra stability, use a small plate or brick as a base for each ear, connecting it firmly to the head. This simple addition instantly transforms the piggy bank into a charming, recognizable pig.

Next, create and attach the nose to enhance the pig’s character. Use a round, 1x1 LEGO piece in a darker pink or black shade for the nostril. Place a larger, curved slope piece in light pink or white behind it to form the snout. Attach this assembly to the front of the pig’s face, ensuring it aligns with the eyes if you’ve added them. For added detail, use a small tile or plate to secure the nose firmly in place. The nose not only adds charm but also serves as a focal point, drawing attention to the pig’s expressive face.

The coin slot is a crucial functional feature of your piggy bank. To create it, use a 1x2 or 2x2 LEGO plate with an open center, such as a grille or fence piece, and place it on the pig’s back or top. Ensure the slot is wide enough to fit coins but not so large that they fall out easily. Secure the slot with surrounding bricks to reinforce its structure. If you’re using a hinged lid for the piggy bank, position the slot so it’s easily accessible when the lid is closed. This feature not only adds practicality but also reinforces the piggy bank’s purpose.

For an extra touch of charm, consider adding additional details around the ears, nose, and coin slot. Use small tiles or studs in contrasting colors to create highlights or patterns, such as polka dots on the pig’s body or a collar around its neck. You can also add eyes using round tiles or bricks if you haven’t already. These small details bring the piggy bank to life, making it more engaging and visually appealing. Remember to balance functionality with aesthetics, ensuring all added features are securely attached and do not interfere with the coin slot’s usability.

Finally, test the functionality of your piggy bank after adding these features. Drop a few coins through the slot to ensure they fall into the storage area without getting stuck. Check that the ears and nose are firmly attached and won’t break off with regular handling. If any adjustments are needed, reinforce weak points with additional bricks or plates. Once everything is secure and functional, your LEGO piggy bank is ready to serve as both a practical savings tool and a delightful decorative piece.

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Finishing Touches: Decorate with details, ensure the coin slot works, and test durability

Once your LEGO piggy bank structure is complete, it’s time to focus on the finishing touches that will make it both functional and visually appealing. Start by decorating with details to personalize your creation. Use smaller LEGO pieces, tiles, or stickers to add features like eyes, a nose, or even a curly tail to give your piggy bank character. Consider incorporating colors that match your room or theme, such as pastel shades for a softer look or bright colors for a playful vibe. You can also add patterns or textures using LEGO bricks to make it stand out. Remember, the goal is to make it unique, so let your creativity shine while ensuring the decorations don't interfere with the coin slot or structural integrity.

Next, ensure the coin slot works seamlessly. Double-check that the slot is wide enough to fit coins but not so large that they fall through easily. Test the slot by inserting a few coins to ensure they slide in smoothly without getting stuck. If the slot feels too tight, carefully adjust the surrounding bricks to widen it slightly. Conversely, if it’s too loose, add a thin layer of LEGO plates or tiles around the edges to narrow it. Make sure the slot is securely attached to the body of the piggy bank to prevent it from breaking off under the weight of the coins. A functional coin slot is essential for the piggy bank to serve its purpose effectively.

After finalizing the coin slot, test the durability of your LEGO piggy bank. Gently shake it to ensure it can withstand movement without falling apart. Check that all connections are secure, especially around the base and the coin slot area, as these are the most vulnerable parts. If you notice any loose bricks, reinforce them by adding extra layers or using LEGO Technic pins for added stability. Additionally, test the strength of the bottom compartment where the coins will be stored. If it feels flimsy, consider adding a thicker base or using larger bricks to distribute the weight evenly. A sturdy piggy bank will last longer and protect your savings.

Finally, take a step back and assess the overall look and functionality of your piggy bank. Make any last-minute adjustments to the decorations or structure to ensure it meets your standards. Once you’re satisfied, place it in a prominent spot in your room and start saving! The finishing touches not only enhance the aesthetic appeal but also guarantee that your LEGO piggy bank is practical and durable. With attention to detail, a functional coin slot, and robust construction, your creation will be both a fun DIY project and a useful tool for saving coins.

Frequently asked questions

You’ll need basic LEGO bricks, such as 2x4 and 1x2 pieces, a baseplate, a coin slot (or a modified brick with a hole), and optionally, specialized pieces like pig ears, a tail, and a nose for decoration.

Use a 1x2 brick with a hole in the center or modify a brick by removing a stud to create an opening. Place it on the pig’s back or top for easy coin insertion.

Yes, build a hollow interior using walls and a base, leaving an opening at the bottom with a removable brick or plate to access the coins. Ensure the structure is sturdy to hold weight.

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