You’ll find a wide range of bulk polystyrene foam balls for crafts on Walmart.com. Options typically include:

• Multiple diameters—from mini (under 1") to jumbo (around 7–8").
• Assorted multipacks—single-size value packs or mixed-size kits.
• Smooth, white surfaces suited for painting, gluing, and decorating.

To zero in on what you need, use filters for size/diameter and piece count, then check product photos and the description for exact measurements. Customer reviews can also offer helpful project ideas. Many items offer delivery or store pickup depending on your location and inventory. Availability can vary, so reviewing listing details before you order can help you choose the best fit for your craft.

Looking for big spheres? Here’s a quick way to locate them:

1. Search for “foam balls” and apply size/diameter filters.
2. Scan titles and descriptions for larger sizes (for example, 5"–8").
3. Confirm diameter in the specs and review photos for scale.
4. Choose smooth-surface options if you plan to paint or apply vinyl.
5. Select store pickup or delivery at checkout, based on what’s available in your area.

Measuring your project space first can help you pick the right diameter. If you’re deciding between two sizes, checking product Q&A and reviews may provide helpful context from other crafters.

There are several ways to keep craft costs in check without sacrificing results:

• Choose larger multipacks or bulk counts to lower the price per piece.
• Consider mixed-size sets if your project can use multiple diameters.
• Pick the smallest diameter that still achieves your look to reduce material.
• Use filters to compare options by piece count and size, then review descriptions for exact measurements.
• Opt for store pickup when available to avoid expedited shipping costs.

Comparing a few listings side by side and reading reviews can help you identify good value for your needs. Selection can vary over time, so checking back during busy crafting seasons may offer more choices.

Start with your project goal and work backward from size:

• Small details (garlands, STEM models): sub‑1" to ~1.5" balls.
• Ornaments and classroom crafts: ~2"–3" balls offer a good balance of size and weight.
• Centerpieces and displays: larger spheres (~4"–8") create more visual impact.

Check the listing for exact diameter and whether the surface is smooth if you plan to paint or apply decals. It helps to measure the space where the ball will sit (vases, stands, or project boards) and compare it with the product dimensions. When in doubt, trying two close sizes and testing your design can provide clarity, since different materials and techniques may behave differently.

Polystyrene foam reacts to some solvents, so gentle, water‑based supplies are a practical choice:

• Paints: Water-based acrylic or craft paints are commonly used. Apply light coats and allow each layer to dry.
• Glues: White/PVA or tacky glues adhere well. Low‑temperature hot glue can work for light embellishments; test first.
• Avoid: Solvent-based spray paints and strong solvent glues, which can melt foam.
• Prep: Use a skewer or toothpick as a handle, and set the ball on a drying rack or cup.
• Safety: Work in a ventilated area, protect your surface, and follow all product instructions.

Testing your paint or adhesive on a small, inconspicuous spot can help you confirm compatibility before committing to your full design.