Balloon (Pipe Down!)

From the Super Mario Wiki

The Balloon is an item in Pipe Down!. It is one of two items, alongside the Noisemaker, that Mario and Luigi can obtain from the Toad servants at Princess Peach's ninety-ninth birthday party. They can lose it if they accidentally open Princess Peach's bowling ball collection, causing the bowling balls to fall on top of them. The green Balloon can be given as a present to a Clawgrip that is acting as a "Toll Crab" in a tunnel. Luigi pulls it out of his pocket, inflates it, and hands it to Clawgrip, who quickly pops it with its pincers. This leaves Clawgrip enraged, and Mario and Luigi run away in fear.