I just received another shipment of tees from the good folk over at threadless.com. I highly recommend them for anyone who is looking for some fun tees designed by aspiring designers.
The principle of threadless is that anyone can submit a design, visitors to the website vote for their favorite designs, and then each week the team at threadless release a batch of new t-shirts based on the most popular.
For designers its a great way to get your ideas out there, and for everyone else, its a great way to get some fresh original tees all at reasonable prices (mens tees start at $12US and ladies at $15US). You can also earn store credit by recommending designs, or submitting pictures of yourself wearing a threadless tee.