Art teachers are well known for using recyclable materials, aren't we? We use plastic containers of all sorts to hold art supplies or water and old clothing as smocks. We even use recyclable materials to create art!
One material that I recycle in the art room is OLD DISHWASHER RACKS! Their non-stick coating makes them so handy as drying racks for paper mache projects. I first had this idea when I bought a new dishwasher and just couldn't let them take the old racks away...I knew there would be a good use for them. They worked so well for drying paper mache projects, that I've since gone to an appliance store and picked up extras that were being sent to the dump so that I have enough for each class.
What do YOU recycle in the art room?