Just finished the first two of what may be 8 or 10 Gobos for isolation in home recordings. Rockwool from Homedepot (found a pack of 9/12 on Craigslist for $15), 1x3 pine boards from home depot - $2.3x a piece, King size sheet set from Ollies - $15, Hinges from Homedepot about $3? a pair, 1/2 inch staples for my Arrow stapler. A couple hours of fun, easy work. Now it's into the studio (livingroom).