Rawhide goat skins in a color the tannery called Swamp (which is somewhere between green and brown; we can’t tell).  These are very stiff, but soften up in warm water and may be formed to shape.  Mask makers use this stuff, got it?  They run about 2 ft wide by 3 ft tall, give or take.  $25 each, 48-state USA shipping is FREE and we only capitalized that so you’d notice; tweren’t trying to holler.  We ain’t like that upcountry.