Get a tramp stamp.

But srs. Just think; Will this tattoo still be fun when you're 90?
I don't plan on living that long, but would anyone really still care when they're 90? If I get to that age, will I even be able to show it off to anyone? I sure as hell won't pull any more chicks by showing of my ink on my (close to-) dead sexy senior citizen-body.
I'm not saying I haven't played with the idea of getting animu-tattoo's myself (I've thought about getting a Triforce from Zelda, as well as the demon-mark Gutts from Berserk has which bleeds whenever an evil spirit is close), but I usually decide it's not for me. If anyone think they can be happy with that though, then I say it's alright. Just don't do anything you'll regret, because getting rid of tattoos is both expensive and painful (unless you cover it with another one; then it's just expensive).