Blatant intellectual property infringement though it may be, there is a very cool t-shirt featuring a Bob Dylan caricature (by Randy McQuien Jr) at TeeFury today. Hurry though as these $9 t-shirts only stay in stock for 24 hours.
I am the Tee Reviewer. I go by several names such as deadhippo and Rude Retro but whatever you decide to call me, I will still be the Tee Reviewer. I also run the Shirt List which has the most and the best t-shirt lists as well as providing free promotion for t-shirt stores! Check it out.