A Hello Kitty tattoo...that sounds rather disturbing. Same with the ones who got Spongebob tattoos and etc. ^^;;
My current ideas include the Heart Pirates' jolly roger (but probably not, since I wouldn't know if I'll still be supporting them ten years later), tribal designs, and etc...I think the only 'safe' tattoo that I can get which I'm pretty sure I wouldn't be changing my mind on would be to get a tattoo of a snake. I love snakes. <3