Do your shirts have a theme? There are arts/craft festivals or events geared towards most. For example, if by your name you are selling surf tees, then i would look at surfing contests, beach vollyball events, etc. to sell your gear.
I don't know of a specific tee shirt festival. And the only tradeshow that i know about are mainly for selling to stores (MAGIC).
I don't know of a specific tee shirt festival. And the only tradeshow that i know about are mainly for selling to stores (MAGIC).