Mat Board Center, Pack of 10 1/8" White Foam Core Backing Boards (5x7, White) - Walmart.com
1/8" Thick VTP (Volara Equivalent) Sculpting Foam
1/8 in Foam Thick, 48 in Roll Wd, Foam Roll - 36DY82|36DY82 - Grainger
Foam Roll - Non-Perforated, 1/8", 72" x 550' S-1101 - Uline
1-3/8" Thick Crosslink Foam Rolls/Per Roll - US Gym Products
Amazon.com: MAGZO Adhesive Neoprene Foam Padding 1/8 Inch (0.125”) Thick x 12 Inch Wide x 59 Inch Long, Closed Cell Foam Roll with Adhesive Backing : Industrial & Scientific
Amazon.com: 1/8" Closed Cell Foam (2lb Density) - for Upholstery, Crafts, Automotive - by The Yard (White)
Amazon.com: 1/8" PE Foam Wrap 24" x 275' Per Roll : Office Products