The artist who designed our Cody mascot has created for us some very cool designs which we have put on some cafepress items. The mugs in particular are wonderful:
However, these items are really not meant to be purchased (we put the prices super high so that people wouldn't just go buy them). This is because our site depends on donations and we just couldn't stand the idea of people spending their money on merchandise and thinking they were supporting our site, when really only a tiny amount would go to us, and also because we much prefer to give out the merchandise ourselves as gifts to members.
So the answer is that you can't really buy DonationCoder merchandise but you can get given some by participating in fun projects on the website and forum.
Note: All supporting members are elligible to receive by postal mail a free silly DonationCoder.com "member kit" which includes some postcards, a magnet, and a happy membership card. We will send this to anywhere on the planet free of charge. Just submit your request for a kit here [watch a
screencast]: