MT Products 4 x 4 x 4 White Polystyrene Foam Block/Foam Cube - Pack of 6

MT Products this foam is made of polystyrene foam molded from tiny beads into fun foam blocks. None squishy kind of white craft foam but lightweight.

FanFlex: Lightweight flexible crests and patches that fold easy. - FanTex: An all-new super comfortable soft fabric. - FanFit: The authentic on-ice

MT Products 8 x 4 x 4 White Polystyrene Foam Blocks - Pack of 4

FanFlex: Lightweight flexible crests and patches that fold easy. - FanTex: An all-new super comfortable soft fabric. - FanFit: The authentic on-ice

MT Products 6 x 6 x 6 White Polystyrene Foam Blocks - Pack of 4

SoundAssured White Acoustic Foam 2x12x12 inch Panels - 4 Pack

4 Pcs Customizable Polyethylene Foam Packing Foam Inserts for Cases Tool Foam Black Foam Sheet for Packaging and Crafts

FanFlex: Lightweight flexible crests and patches that fold easy. - FanTex: An all-new super comfortable soft fabric. - FanFit: The authentic on-ice

Juvale 6 Pack Foam Cube Squares for Crafts - Polystyrene Blocks for DIY, Floral Arrangements, Arts Supplies (4 x 4 x 4 in, White)

Owens Corning FOAMULAR 150 2 in. x 4 ft. x 8 ft. R-10 Scored

FanFlex: Lightweight flexible crests and patches that fold easy. - FanTex: An all-new super comfortable soft fabric. - FanFit: The authentic on-ice

Floracraft Styrofoam Block 4x4x18

FanFlex: Lightweight flexible crests and patches that fold easy. - FanTex: An all-new super comfortable soft fabric. - FanFit: The authentic on-ice

MT Products Hard Foam Blocks (6 Pack) 4 x 4 x 4 Non-Squishy Polystyrene Craft Foam Cubes for Arts and Crafts

Board Insulation at

Hard Foam Craft Blocks / Cubes - Non-Squishy Polystyrene Bricks by MT Products