Annie's Broom Bass For my instrument, I decided to create what I call a Broom Bass. The Broom Bass is a simple instrument made with a broom, a box, and a piece of string. It makes a very low pitched sound. You play it by putting your foot on the box, plucking the string, and moving the broom back and forth in order to create different pitches. Try making one at home, it's really easy.