I guess the dilemma for me is, how do we pick something that's general and yet descriptive for Bitshares? I would proudly wear a shirt with "Reimagine Everything" or "The Revolution Will Not Be Centralized," even though I know I would have to stop and explain it to everyone who asks. Those describe the dream, but not necessarily the practical focus. If the slogan specifically mentions finances or music or privacy, etc., then I think that's a lot less abstract and it might grab more peoples' attention. I favor something concrete rather than abstract.
But as I said, I'll wear any of those shirts. When the DACs come out, I'd like to have a whole drawer-full of shirts with the retail names of those businesses on them (e.g., whatever Bitshares Music's trade name will be).