For my skinned corpse I used knee-highs, and they had to be mad stiff to to hold the paint I was using. I used a few coats of modge podge, which I think is just an acrylic sealer of some kind. Don't quote me on that.
But, that most likely wont work for you, because it's 8 bucks for a 16 oz bottle.
Some sort of generic might be better in your case.