It's just blacklight hairspray on a metal garage with a blacklight mounted in the eve. The blacklight has been mounted in the same spot for four years without ever taking it down. Never has weather issues with it. After Halloween, the hairspray just wipes off with soap and water.
Mask room- Totally black room, with blacklights, with these hung on the walls, and one person wearing all black with these attached to them selves, and just when you think it's just a headache trippy room, the person wearing the masks all over their body is no longer blending in, they've jumped out at you! BAM!