One of these will be the next Double Fine t-shirt. You can vote for your favorite (which is cool), but you have to register in the forum to do so (which is lame).
Or you could just buy merchandise already available. I love their double-headed baby mascot:
Relatedly, you can read an interview with Scott Campbell and watch him frolic with his puppets here.
*Previously: Brutal Legend desktop wallpaper.
*Buy circus posters at eBay.