For a long time I thought about getting some sort of tiki related thing, but I could never really settle on something that I liked that would be reasonably priced (those shaded line drawings have GOTTA be expensive). But now I think I found one that's inside-baseball enough for me to like and to confuse most others, but still not completely obscure. It's the membership badge from the now-defunct Adventurers Club at Walt Disney World's now mostly-defunct Pleasure Island. It looks like this:
I honestly have no idea how much it would cost to get this done, but I'm pretty certain if I ever do get a tattoo done, it'll be of this.