You can phone +1-561-567-8431, wait for the beep, scream, and then hang up. 

Just Scream “is a participatory sound art project created by Chris Gollmar”, an elementary school teacher. Your scream will be recorded and saved to a playlist depending on scream criteria such as featuring laughter, animal sounds, etc. The project will be archived on 21 January 2021 so it’s best to call today. 

Source: shotinthekidney