Coin Art - foreign coin collection I LOVE this idea. Im slowly collecting foreign coins thrown in the tip jar at work, I think theyre really nifty and beautiful. Might not even wait for enough for a big frame, just get ittle ones to fill up :)
Hand painted tree rings - would recommend putting all tree rings on a board (which could be painted a coordinating color to add pop to the art piece. Really neat idea for after school kids. Might just do 9 rings in a square frame!