I, for one, love threadless.com and having been submitting designs for quite some time. You can look up my designs by searching for Funnel (yes, I usually mantain the same user name). I would be really interested to see other people's designs, or just hear if anyone else is a fan of the site.

And for those who don't know, threadless is a website where people submit t-shirt ideas, they get voted on, and the winner gets $2,000 and the website sells the shirt for them.