There's a new system on Threadless called 'funding'. If 50 people fund the design (place an order) it will actually get printed. If it doesn't reach 50 people by the end of the voting period, all funders get their money back and the shirt does not get printed.
So I figured I'd give it a try with an old submission that got a good score:
If you use this promo code when funding my design you get 5$ off: VWOTS4