Dr. Jones - CD Dumbbell by Yu-jui Chou
TreeHugger usually hates things made with old CDs but this one cut the mustard as "they" say. We seem to recall from our various "Time to get in shape!" phases that 5 lbs might not be quite enough to go Arnie but all the same, she's a beaut! Nicked From the endless supply of sustainable prototypes at Design Boom's Macef contest.