Foam balls are versatile for lots of DIY and school projects.

• School models: planets, molecules, cells, and dioramas.
• Seasonal decor: ornaments, wreath accents, and table centerpieces.
• Floral design: half-balls to anchor faux stems and greenery.
• Party crafts: garlands, topiary shapes, and signage.
• Hobbies: cosplay props, costume bases, and model-making.
• Slime projects: micro foam beads add texture in craft slime.

Choose smoother surfaces if you plan to paint, and more textured options if you’ll pin fabrics, sequins, or floral picks. Keep small pieces away from young children, and avoid open flames or high heat, since many foams can warp or melt. Checking size and pack counts ahead of time can help you plan your project.

Pick a size based on visibility, weight, and display space.

• 1–2 in: mini ornaments, garlands, small models, and filler accents.
• 2–4 in: classroom projects, medium ornaments, and small topiaries.
• 5–8+ in: centerpieces, large planets, and dramatic displays.
• Half-balls: wall-mounted decor, arrangements, or flat-surface domes.

Material matters, too: white craft foam (polystyrene) is a common choice for painting and general crafting, while green floral foam shapes are often used to position artificial stems. Check listed diameters and pack quantities to match your plan. Techniques and results vary, so it can help to get an extra piece to test your paints or adhesives before starting.

You can shop foam balls online and in many stores.

1. Search “foam balls” on Walmart.com or the Walmart app.
2. Filter by size, color, or quantity, and check options for Pickup, Delivery, or Shipping where available.
3. In-store, look in the arts and crafts section; store signage and associates can help you find multipacks, half-balls, and mixed sizes.

Availability can vary by location and season, so it’s a good idea to confirm stock online before visiting. If you’re buying for a class or event, consider ordering ahead to secure the quantities you need. Product pages typically include measurements, so you can select the right size without guesswork.

Gentle, water-based products and light coats can help protect the foam.

1. Insert a skewer or toothpick as a handle for cleaner coverage.
2. Prime with a water-based primer or decoupage medium to reduce pitting.
3. Use thin layers of water-based acrylic paint; let each coat dry fully.
4. Avoid solvent-based sprays and high heat, which can damage or deform foam.
5. Optional: seal with a water-based topcoat for durability or a matte/gloss finish.

Dry times, adhesion, and finish can vary by product and humidity. Testing your process on a spare piece can help you dial in coverage and sheen before painting your final project.

If foam balls aren’t a fit, several substitutes can work depending on your project.

• Crumpled paper or foil cores wrapped with tape and paper.
• Papier-mâché layered over a balloon or lightweight mold.
• Yarn pom-poms for soft, spherical decor.
• Air-dry clay or modeling compound shaped into balls.
• Plastic fillable ornaments for smooth, rigid spheres.
• Stacked cardboard discs carved and sanded into rounded forms.

Each option differs in weight, texture, and paintability, so test your adhesives and finishes first. For projects involving kids, avoid small loose pieces and follow any age guidance on your materials. Selecting a substitute that matches your display needs can help your design look balanced and secure.