[ noun ] a device (such as a clapper or bell or horn) used to make a loud noise at a celebration <noun.artifact>
noisemaker \noisemaker\ n. Any device (such as a clapper or bell or horn) used to make a loud noise at a celebration. [WordNet 1.5]
Hardee's Restaurants began offering the promotional toys June 28, allowing patrons who purchase a meal or a dessert to buy the small rectangle noisemaker in one of four colors for $1.79.