They are all  have designs that will in no way infringe on any copyright issues... if you dont know whats copyrighted and whats not ( because the manufacturers wont tell you) Then its considered best to steer well clear... i agree though.. none of the designs inspire.

Im designing some shirts at the moment that i hope to be able to take to Newcastle this year based on backglasses and cabinet artwork. Those with copyright issues can bring the paperwork that states its subject to and ill remove from sale.. other than that, they will be sold quite freely