I had never heard of Boomwhackers until I saw the sale today on Mamapedia. They have a sale on a diatonic Boomwhacker set for $21 shipped. (look under the sale in Houston although it is good anywhere in the US) It is a similar concept of handbells, orchestra bells, or those pipe organ looking PVC pipes you can “play” at children’s museums. Each tube has a different pitch. It sure looks like an interesting way to introduct and experiment with music and kids. Has anyone used these before?