Dedede holding the Cumulonimbus Whistle
The Cumulonimbus Whistle is a whistle that has the ability to summon Kracko. It belongs to the royal family of Dream Land. It was first seen in Chapter 5 when Dedede used it summon Kracko to attack Drawcia's army.
It's simply a silver whistle made of metal.
- Cumulonimbus clouds are the type of clouds that thunderstorms are made of in the real world.