When I was around 19-21 I used to have one between the eyebrows, one in the ear, one in the nose, one in the tongue, 4 in the nipples (horizontally and vertically), and one in the belly-button.

I got bored after while and took them all out.

Nowadays I only have the tongue one.

And I was too much of a chicken for anything below belly-button level. *g*