Birdy

Cowboy Bebop

Dragonball

Flame of Recca

Gundam Wing

Hunter x Hunter

Inuyasha

Mononoke Hime

Oddments

Outlaw Star

Ranma 1/2

Rurouni Kenshin

Trigun

Yuu Yuu Hakusho

Trip toy?
I've often wondered why the teenage version of Koenma still uses a pacifier. The only idea I've had so far is that he thinks he's at a rave.
 
Added: 5/22/02 From: AnimeGame
 
Trip toy?