The rattle ratchet! It's a super fun and unique musical instrument. It's a percussion instrument that consists of a handle with a spinning gear and a rattle in the middle. When you spin and shake the handle with the gear attached, it creates a cool rattling sound. It's often used at various events like football matches, marching bands, parades, and other lively musical performances. It adds a catchy and rhythmic element to the music and cheering. Have you ever played or seen one before?