Has anybody done a room like this?

DJ, I definitely agree. My intent is to capture that look; I've got TONS of ideas for unique scenes. My concern was seeing if anybody here has gotten something like this approved for an outdoor haunt. So far the comments have helped, so thanks!

A fire retardant white vinyl? That's a very good idea that I never looked at!

Blood Paint is the other expensive blood referenced. Works great, stays glossy and real for years (I still have some on my garage floor that is from two years ago and people still think someone was bleeding today). Forget who the vendor is though. They sell at TW every year