Boot Whistle

The Boot Whistle is an item in Paper Mario: The Origami King. It is a yellow whistle that is used to summon the Boot Car to Mario's current location. If the Boot Car is already nearby, the whistle is not used. The Boot Whistle is given to Mario by the Toad's Automoboots mechanic, after he rides the Boot Car. Despite not being consumable, it is stored in the regular items category along with the Sensor Lab inventions.