HeleCap

The Helicopter Cap, or shortened more to as, Helecap, is a object that appears in the Potato-Man Jr. comic strip series, and the Potato-Man series. It is worn by Potato-Man's son Junior, who invented it to fly like a propeller on Junior's adventures. Apparently it also can fly on its own. This is often seen every time Junior is wearing a cap on his head, it's the most common.