Making my own Scarecrow mask.
I used burlap and cotton matting as backing. I 3M spray-glued the cotton to the burlap, pressed, let dry until there were no more fumes, then cut out my pieces. I even went to an antique shop and found a foam head to work the whole thing around. It was sewn together with twine, brown thread, and black lace for the mouth portion.
I left a little burlap patch near the mouth to breathe out of with no cotton backing.