LP's Bass Drum Claw Hook Cowbell Mount Clamp attaches to both sides of your bass drum's hoop, preventing it from slipping to the side over time (a common bass Mount Clamp problem). You can attach a cowbell or jam block to your drum set with zero fear that it will slide around on you.
This Mount Clamp comes with a large, grooved 3/8" L-rod with a memory Mount Clamp, attachable to any small instrument with a 3/8" mounting bracket.