1) Celebration accessory 2) Cowbell 3) Device 4) Grogger or vuvuzela 5) Item for a lively party 6) Party equipment 7) Party favor on December 31st Found on https://www.crosswordclues.com/clue/noisemaker
a person or thing that makes noise, as a reveler on New Year's Eve, Halloween, etc., or a rattle, horn, or similar device used on such an occasion. Found on https://www.infoplease.com/dictionary/noisemaker