Skivvy

Skivvy is a rabbit who works at Grunty Industries. He is terribly upset because his overalls are filthy and covered in stains. After transforming into a Washing Machine and washing his and 5 other coworkers' (who look exactly like him) clothes, he will reward Banjo and Kazooie with a Jiggy.

Trivia

 * This is the only instance of a character who doesn't like being nude in the Banjo-Kazooie series, as when Banjo washes his dirty overalls, he is embarrassed and covers himself up.
 * He prefers the "Heavy Soil Wash" setting on a washing machine.