From the Super Mario Wiki, the Mario encyclopedia
The Confetti Vacuum is an accessory in Paper Mario: The Origami King. It takes on the appearance of a pastel-colored confetti bag, with the hose and nozzle of a vacuum cleaner sticking out the top, and as its name suggests, it allows Mario to draw in any confetti he knocks out of enemies and plants, without having to manually pick it up. It is also especially useful when riding the Boot Car or Sea Captain Toad's ship post-engine-upgrade, as having it equipped lets Mario immediately gather confetti from the Folded Soldiers he rams through.
This accessory can be purchased early on in the game, just outside the Earth Vellumental Temple.
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