For me, the answer is always to tattoo. :D It's very personal for me, though, I wouldn't get something just to get it. Like the other day, a guy I was chatting with asked me what he should get. We didn't even know each other and I thought, if you need to ask a total stranger, then you should not be getting tattooed. I think it needs to mean something to the wearer. I love mine and what they represent, but if they were just a whim or I thought they looked cool at the time, I think I'd inevitably grow to resent them. :)

I think vitiligo is a very unique kinda tattoo, too. <3