White Styrofoam/polystyrene/eps Foam Block 12 X - Etsy Canada
Polystyrene Foam 24"x48" | Foam Factory, Inc. - Canada
Giant Sculpting Foam Blocks - Insulation Company of America
EPS Foam Block | Hot Wire...
GeoFoam America, buy made-to-order foam blocks and EPS foam
Silverlake Large Craft Foam Block - 11x17x7 EPS Polystyrene Blocks for Crafting, Modeling, Art Projects and Floral Arrangements - Sculpting Blocks for DIY School & Home Art Projects : Amazon.ca: Home