Oswald the Rabbit

The mortgage is due on Oswald and Toby's house. Mister Skrats, who holds the mortgage and wants them to default so he can dig for buried treasure in the cellar, tricks Oswald and Toby into heading to the mountains to seek the biggest egg, which would win a contest. If the contest wasn't fake, that is. The two find a roc's nest and the roc takes them to a tropical island where they become kings of a cannibal tribe.