Gama-chan

Gama-chan is Naruto Uzumaki's toad shaped wallet, whose theme happens to go along with his summoning contract with the Toads of Myōbokuzan. Naruto cares for Gama-chan as if it was a pet, saying it was fat and happy when it was full of money, and was disappointed when Jiraiya's "research" usually ended up with Naruto broke and Gama-chan empty.
 * Name: Gama-chan
 * Debut (Manga): Chapter 150