You can shop foam craft balls online and often in stores. For the quickest find:

• Search: Type “foam balls” or “polystyrene balls” on Walmart.com.
• Filter: Narrow by diameter (e.g., 1 in to 8+ in), quantity (single or multi-pack), and shape (full spheres or half balls).
• Check availability: Look for delivery, shipping, or pickup options based on your location.
• Browse categories: They’re typically in Arts & Crafts under crafting supplies.

Product pages generally list size in inches and pack count, which can help you match your project needs without guessing.

You’ll see a few names used interchangeably when you search:

• Foam balls or craft foam balls
• Polystyrene balls or polystyrene foam spheres
• Foam craft spheres (for full balls)
• Half foam balls or foam half spheres (for flat-back pieces)
• Foam beads (very small round fillers)

Using these terms in the search bar can surface different shapes, sizes, and pack counts. If you have a specific size in mind, include the measurement (e.g., “3 inch foam balls”) to quickly see matching options.

There are several ways to stretch your craft budget without changing materials:

• Half balls: Flat-back pieces work well for wall art, wreaths, and displays where only one side shows.
• Multi-packs: Buying sets (e.g., 6-, 12-, or 100-packs) can be more cost-effective for bulk projects.
• Smaller diameters: Choosing 1–3 inch sizes instead of larger spheres can reduce overall cost.
• Assorted-size kits: Variety packs cover multiple needs with one purchase.
• Foam beads: Useful as lightweight fillers for vases, ornaments, or texture projects.

Comparing pack count and size against your project plan can help you balance value and quantity.

Start with the finished look you’re going for, then work backwards:

• Measure your space: Note height/width limits for ornaments, centerpieces, or models.
• Match the diameter: Foam balls are listed by size (e.g., under 1 inch up to 8+ inches). Pick a diameter that fits your design.
• Consider quantity: Smaller sizes are useful in multiples; larger ones stand out as a single focal point.
• Check shape: Half balls are great for flat surfaces, while full spheres offer 360° coverage.

Product pages typically show size and pack count, so reviewing those details can help you choose confidently.

The main differences come down to shape, display, and how you use them:

• Full balls: True 3D spheres that work for round ornaments, models, and projects viewed from all sides.
• Half balls: Flat-backed hemispheres designed to sit flush against walls, wreaths, boards, or planters.
• Stability: Half balls rest securely on flat surfaces; full spheres may need stands or skewers.
• Coverage: Use half balls when only one face is visible to reduce materials and weight.

Both styles are listed by diameter, so a 3-inch half ball matches the face of a 3-inch sphere.