This video showing an awesome balloon bass was the starting point of our own exploration yesterday afternoon:
Before going home I decided I would quickly try to make my own balloon bass, and pulled out some balloons we conveniently had in the Learning Studio. Ryan and Ann where in the room, and as often happens, they were sucked into "play" mode with me. What is remarkable about this is that it went from inspiration (I saw the video above in the morning) to prototype within a day. Here's a chronicle of our efforts!