I quite love guitar effects pedals, and have never built more of anything in my life than custom pedalboards. I’ve made quite a many over the years for myself and friends. All of them use recycled materials. Here’s three of em:
2006. Steel shelves, plywood, carpet.
2007. Plywood, perforated steel desk shelves, carpet.
2004. Stained plywood, carpet, luggage handle.