Most Helpful Guy
Not a fan of metal anywhere on a girl's face besides her ears, at least that is out of the way for putting things inside of her. As for the nose, just a big turn off for me to see metal on that part of a girl. It is so close to where I kiss her, it becomes a distraction. Same thing goes for lip or tongue holes.
Interestingly enough, I think navel chains are really, really sexy. A woman's tummy is like a little canvas that looks beautiful when hanging with a little chain. I don't kiss that part of her body in the way I do her face.
Go for the navel only! :-)