Any interest in .NET T-shirts?

[ImEvil1]

I stumbled onto a pretty cool website that offers custom T-shirts. You can actually upload images to the site and place them anywhere on the shirts, custom-configure text, etc. I mocked up a 2 color shirt with front and rear printing and it looked like it would be $12-15 per shirt if we ordered more than 10. Below is a screen-cap of the front of the shirt I configured, with the website's name (in matching script) on the left chest

My questions:

How many are interested and what would you all like to see on the shirts? I think these would be great to wear at shows, and much more comfortable than polo-style shirts.