We had our awesome GeekDad Tshirts made to wear to the Maker Faire this year, and so many people asked us where they could buy a Tshirt of their own that some of the other Geeks looked into it. Ken, our head Geek, wrangled a deal with ThinkGeek, everyone's favorite store for geeks. As of this week, they now offer our awesome Tshirt for sale. The logo is on the front, along with the URL, and the back has a tag cloud of post tags from GeekDad.
The price is decent, and your purchase goes to help all the Core Contributors of GeekDad earn a small amount of money (especially me, if you use my links - muhahahaha!).
(Image: GeekDad.com and ThinkGeek)