We can't print Boston Marathon, or anything related to it, since it went commercial about 30 years ago. Before, it was completely open. My boss spent about 20K fighting it when that happened, and lost. Having been bitten by copyright law before, (ignorance of it actually) I just don't like to take chances, especially for 12 shirts. So, I'd rather not guess, and tend to err on the side of safety. Now, making your own signs and t-shirts for a march or gathering isn't the issue, it's somebody producing them and being paid for it and someone not getting their cut. But thanks for the thoughts you guys, I do appreciate it.
Steve