Mumbo Totem

Mumbo Tokens are small silver skulls found Banjo-Kazooie. Gruntilda stole them away from Mumbo Jumbo and scattered them throughout various worlds. Banjo and Kazooie must collect them and return them to Mumbo, and in exchange he will offer his services by transforming them into an animal that matches the particular world's theme. A sign inside Mumbo's Skull will dictate how many tokens each transformation spell costs, and once a spell has been paid for, the pair can use it as many times as they need.

They were erroneously called "Mumbo Totems" in Banjo-Kazooie: Grunty's Revenge.