Bang Bang T-Shirts is one of the smaller t-shirt competition sites but they have some pretty cool shirts including one by Tee Reviewer regulars, Wotto and Jimiyo. There is a definite pop culture flavour in this store. The sale is £3/$6 off the t-shirts through to January 1st. I think it has already been applied to the prices (don’t quote me on that though). There is also free shipping worldwide from the UK.