Nothing says awesome more than a picture of Nikola Tesla with a lightning gun and a pigeon. It's the ultimate mad science statement, and it's only $6.
This beauty comes from the winningly-named 6 Dollar Shirts site, and is one of many great geek and science shirts they offer. I love the product description:
With his faithful pigeons by his side, he made electricity his bitch.
Grab the Tesla shirt before it's too late.