Legend of Zelda: Majora's Mask Easter Egg - Cheat at Postmans Game.

There is a minigame where the Postman asks you to stop a clock exactly at ten seconds. Normally the clock will disappear after two second, leaving you to guess, but if you wear the Bunny Hood the timer stays up on the screen. This is good since he gives you 50 rupees after the second time you win. Repeat for big bucks.