I have to admit: I'm a nut for Threadless
. The t-shirt design submissions that actually go to print after voting can certainly be hit or miss sometimes, but they crank out enough to keep me coming back for more. As if combing their site for new threads isn't enough of a time-waster, someone decided to curse my productivity by creating a Threadless Vote widget
that allows you to browse and rate submissions. You need to have a free account already created with Threadless, but after that minor step, you can go nuts with tossing in your two cents on which designs make it into their catalog.