26 JUNE 2014
Above are the 3 officially licensed Comic-Con shirts. No real surprises here but there are 2 other shirts for sale: a Comic Arts Conference shirt and a Comic Book Legal Defense Fund shirt that has Bone holding a flag with the saying, "Free Speech is Patriotic."
Yes, you can pre-order these. At this point, I think you can pre-order everything. You do have to physically attend the Con to pick them up, however.