To be honest i have never even seen the shirts :). I set up an account at cafepress.com and uploaded an image. Then you pick from their list of stock items and create a store.

I have never sold an item from the guijaboard or wiremunky store. I just use them to send people t-shirts. I have sent quite a few newborns "onesies". Its part of my marketing strategy to get these kids hooked on my company while they are young :).