Didn't know people did that.
Oh, and for the record, if Wario DOES make it into the next Smash Bros. game, he easily has four outfit choices. Here's some possibilities.
Normal outfit, long sleeves
Normal outfit, short sleeves
Hard Hat (from Wario Land: Super Mario Land 3)
Biker Gear (WarioWare series)
Dr. Wario (Special game in first WarioWare game)
WarioMan (Superhero outfit found in the WarioWare Twisted and Touched games)