I ran across a site called Clever Cuties, which sells apparel for geeks and nerds.  There are several places to find geeky gear like this, but I was really impressed with the site layout, additional features, and the artwork on the apparel is really geeky cute!

The “My Mom’s a Geek” t-shirt seems to fit Geeky Moms.com really well, don’t you think?

Clevercuties.com…not an affiliate but a really fun place to do some virtual shopping.