I've ordered a case of 50 foam boards from the dollar tree online, which I'll be picking up in a couple days. What I want to do is cut each piece into four, and place them on the kitchen walls in a brick pattern, to kinda give the illusion of cinderblock walls. Then, of course, I'll splatter them with fake blood. Does anyone know of a good, inexpensive adhesive to stick the "bricks" to the wall without damaging the paint or leaving a residue? The boards would have to stay up for a couple weeks, and they're pretty light weight.