I want to do something like that picture for a little corridor going into my house, it's about 4.5 feet by 8 feet with a door on three sides and a doorway on the fourth. I am planning on covering the walls and doors separately with black paper or plastic so the doors and still open and then maybe having black strips of plastic hanging in the doorway. The cheapest I have found masks so far is on Oriental Trading co $5.40 per 12 http://www.orientaltrading.com/diy-white-face-masks-a2-25_1185.fltr but still not super cheap because I think I will need a lot of them. I want to paint them with something that will glow good under the blacklight (not glow in the dark paint), maybe spray paint because I will have to paint so many. Anyone done this before or have good suggestions on the kind of paint, cheaper masks, a good way to attach them ect? Thanks!