I figured as much. Can't say I know too much about the symbolism (and skimming Wikipedia didn't really help much).
Well, something with hearts would be nice. I happen to think that it's a very appropriate symbol... and you already see them all over Taiwan anyway. It is noticeably different from any other place I've been (even in Asia). Plus it's an appeal to everyone's better nature.
So... maybe hearts without blood :ponder: