I love piercings. Anyone who says I'll regret any of them is wrong. If I start to take a dislike to them, then I only have to take the barbell out. Easy peasy.
If I had the courage and balls I would have this.

I'd never get it as my family would go ape. And if I did get it, it'd be flipped up.
Like so.
virtually unseen.
edit: can feel a stir coming...