Amazon.com: 36Pack Craft Foam Balls Assorted Sizes(1-2.4in), Foam Balls for Arts and Crafts,Christmas, School Craft Project and Holiday Party。 : Arts, Crafts & Sewing
8 Ct 2 Inch Styrofoam Balls Round White Styro Foam Polystyrene Sphere C086 - Etsy
100 Pack Styrofoam Balls (40 piece 2'' inch, 60 piece 1'' inch) -Foam Balls- Foam Craft Balls - Foam Balls For Arts and Crafts - AliExpress
UltraFoam NoBounce Ball Set
Amazon.com: 124 Pack Craft Foam Balls - 5 Sizes - Bulk Foam Craft Balls - Polystyrene Foam Balls for DIY Crafting and Decoration for Home or School Craft Project | White Color : Arts, Crafts & Sewing
2-1/2" Styrofoam Ball
Foam Balls Toy (1 Dozen) - Only $5.22 at Carnival Source
Juvale 100 Pack 1-inch Polystyrene Mini Foam Balls For Kids Arts And Crafts, Home Party, Small Classroom Spheres : Target