Many years ago when I worked on the Triggertrap camera trigger we'd set up a "scream booth" at events, using the sound trigger. It was a great way of getting attention, and generating content that people want to share.
<a href="https://www.diyphotography.net/how-build-scream-triggered-photobooth/" rel="nofollow">https://www.diyphotography.net/how-build-scream-triggered-ph...</a>