Here's one that's close http://www.zazzle.com/that_obama_sticker_on_your_car_bumper_stickers-128138767282069859
As good as it is I don't think anyone that voted for him feels stupid.
Here's one that's close
http://www.zazzle.com/that_obama_sticker_on_your_car_bumper_stickers-128138767282069859