Glow-in-the-Dark Teeth are a Big Hit in Japan [VIDEO]
The new trend in Japan is LED teeth — a mouth-guard like insert that lights up when the user smiles
http://www.youtube.com/watch?feature=player_embedded&v=wcaQ5QWHJlM
Especially popular among Japanese schoolgirls, some also purchase a wireless hand-held computer which allows them to switch up the colors of their LED teeth on the fly.
Anyone who has seen a hip-hop video knows Americans aren’t opposed to sticking shiny things in their mouth, so maybe the trend will catch on here, too.