Amazon.com : White 3/16" Foam Core 24" x 36" Mounting Boards - 25pk : Office Products
20" x 30" White Foam Board | Michaels
Foam Core Backing Board 3/8" White 24x36- 25 Pack. Many Sizes Available. Acid Free Buffered Craft Poster Board for Signs, Presentations, School, Office and Art Projects - Walmart.com
Amazon.com: Foam Boards White Foam Core Backing Boards, Silver Craft Knife with Protective Cap and 12 Inch Stainless Steel Ruler for Art Presentations Crafts Display Favors(White, Silver, 12 x 10 x 0.2
White Foam Board | BLICK Art Materials
Blick Foam Board | BLICK Art Materials
Foam Core 4′ X 8′ X 1/2″ Black & White | Hollywood Expendables
Mat Board Center, Pack of 10 1/8" White Foam Core Backing Boards (5x7, White) - Walmart.com
Foam Core Backing Board 3/16" Black 12x24- 5 Pack. Many Sizes Available. Acid Free Buffered Craft Poster Board for Signs, Presentations, School, Office and Art Projects - Walmart.com