Here in Melbourne we have a wonderful outlet called Reverse Art Truck. Local businesses donate their waste, such as cardboard, plastic, rubber, wood etc and individuals or groups can fill a bag of 'rubbish' for a set price. I have just been and filled a bag of foam offcuts for stamping, cardboard pieces for bookmaking, wooden rods for stiring dyes pots, wooden blocks for mounting stamps, heavy plastic sheets for monoprinting and many more goodies. Here is a sample of my haul.