Finger moustaches has been growing in popularity over the last couple of years. Can't remember who really started with it, but I can't imagine it becoming commonplace outside of people who are otherwise rather modified.
I saw two girls at a party last week with teardrops on the underside of their pinky fingers. Quite clever when they hold it up to their eyes and frown.
http://modblog.bmezine.com/2005/09/01/tattoo-miscellany/