I constructed a room 17’ x 8’ from 2x4s and sheet rock. The walks were painted white. The ceiling was a large stretched canvas over a2” x 2” pine frame. Hanging from the curling were 129 pieces of clear nylon thread with 2” plastic discs attached at the end. I covered the floor with 4” polyurethane foam. The entrance measured 6’h x 3’w and was 4” thick polyurethane foam slit do...