Hard & Soft Wood
Baltic Birch Plywood
Felt
Cotton
Wool
Hemp
Veg Tanned Leather
Suede
100% Natural Rubber
Silk
Acrylic
Plexiglass
Delrin (POM, acetal)
Mylar
Polyester
Nylon
PETG
100% Linoleum
EPM
Yupo
Genuine Leather
Hardboard (like MDF)
PVC (Cintra)
Lexan (Polycarbonate)
Styrene (Most types)
Polypropylene (PP)
Gatorboard (Styrene)
Neoprene
Vinyl
Fiberglass
Carbon Fiber
Moleskine Covers
Synthetic Leathers
Most consumer Foams
Silicone
EPDM