Amazon.com: IOOLEEM Purple Felt Sheets, 108pcs 4"x4" (10 cm x 10 cm), Pre-Cut Felt Sheet for Crafts, Craft Felt Fabric Sheets, Sewing Felt Squares for Patchwork.
Amazon.com: Soft Dark Purple Felt, Flexible Felt Fabric for Toy Handwork, 1.4mm Thick 12"x12" Felt Sheets for DIY Craft and Sewing Projects : Toys & Games
Amazon.com: 3mm Thick Felt, Stiff Felt Sheets, 12" X 12" Heavy Color Felt for Crafts, 10 Pcs Hard Felt Fabric for DIY Project (Purple)