Near my home there's a shop that cuts granite counter tops, and outside there usually is pile of scrap pieces behind the shop. The owner didn't mind if I scrounged around for some pieces, and I found some that were just the right size for an amp and power conditioner. Once when I found an irregular shaped piece that was a little larger than what I needed, the owner allowed me to pay a shop worker who was on break to cut the granite down to the size of rectangle that I needed. The shop worker was happy to do it for $30 or $40 bucks.