Essentially a friction mallet is a length of cable with a superball on each end. (…I bet you wish that YOU had thought of that!) When you hold it in your hand and let one or both balls drag across a smooth surface the balls vibrate making some very wild sounds. They can sound like whales, a race car, a cello, not to mention some more embarrassing noises! Dragging both balls can produce a chord! Drag one across a door, a window, a drum(!!!), a wall, a file cabinet, the side of your car!
Friction mallets are becoming very popular to use on gongs. Paramount Pictures commissioned me to build a huge assortment of friction mallets to drag across gongs as a film soundtrack effect. Since that time, several gong masters of national prominence have made me their friction mallet supplier.