I got these wooden planks from the lumber yard (but preferably would have picked them up off the street or purchased them from a salvage yard), cheap L brackets from the corner hardware store, and plaster screws. Then I stained the wood with stain leftover from the previous tenants. I painted the shorter wood pieces with zero VOC paint leftover from painting our walls and put them up with the same screws and the smaller size of the same L brackets. I found the medicine cabinet mirror on the street. After a quick sponge bath it was ready to throw on the wall and has proven very useful. The project took me the better part of a day, but I learned a lot, it felt good, and cost about $15.