A friend of mine is a super-talented artist (you can see his work at http://www.inkyboy.com - my favorite part of the site are the book dummies - they are all beautiful and clever ideas for children's books).
Anyway, the two of us have decided to start dreaming up liberal T-shirts and selling them online. I have a major guilt trip over selling non-organic cotton, so most of the shirts we plan to offer will be organic. The latest T-shirt is "St. Patrick Fitzgerald: Driving the Snakes out of Washington" - and it has pics of Karl Rove, Scooter Libby, Bush, and Cheney all as snakes.
You can see it here: https://www.goodstorm.com/item/orangecl