White Ghostline Foam Board - 11" x 14" | Hobby Lobby | 213769
Foam Sheet - 12" x 18" | Hobby Lobby | 330415
High-Density LED Foam Roll | Hobby Lobby | 2202414
Assorted Foam Balls | Hobby Lobby | 1251099
80 Pack EVA Foam Handicraft Sheets (6 x 9 Inches) Colorful Crafting Sponge Paper for Classroom Art and Craft DIY Projects | Thick and Soft Paper,16 Colors : Arts, Crafts & Sewing - Amazon.com