(2007-06-22) Reactee

Reac Tee has an interesting T-Shirt approach. You pick a slogan (2 lines of ~21chars), a unique keyword, and optional stock image, and pay $20. They send you the T-Shirt, which includes instructions for the viewer to SMS your keyword to their number, and get back a standard response which you manage. And you get a log of everyone who messages you. Interestingly Viral. Twitter-esque?

Sept07'2007 update: heh, they have a Twitter-specific design. If you're going to do that (and not use any of their interactive features), then why not just make your own custom design? (I'd make this design push Twitter itself more.) (Of course, you can edit their default wording to do just that, and $20 isn't that horrible a price for a custom shirt...)