Noisemaker (noun)

1. An object or device designed to produce noise, especially for making a racket or attracting attention.
2. A person who makes a lot of noise or fuss.

Origin:

From the verb phrase 'to make noise'.

Examples:

1. The noisemaker at the sporting event was a horn that the fans would blow to cheer on their team.
2. The noisemakers on New Year's Eve added to the festive atmosphere.
3. The noisy kid with the noisemaker was really getting on everyone's nerves.
4. The marching band had a variety of noisemakers including drums, cymbals, and horns.
5. The noisemaker at the political rally was a bullhorn used by the protesters to amplify their voices.