I like them, as long as they're original/not cliched. If you have a butterfly tattoo on your lower back, you really need to sterilize yourself. Okay, that's a bit harsh, but you know what I mean.
I saw a girl with a snitch (from HP), on the back of her neck the other day, and I really liked it.
My parents won't let me get any while I'm living with them, though. I respect them, so I won't. They will let me get a few piercings, though, so I'm currently trying to sell them on an anti-eyebrow. So far, they aren't buying it. But I have confidence in my bargaining skills. I think everything's possible. Except tattoos. And probably anything in the genital area. And my nipples. But I'm okay with that.