with Paul May, we tried to do something interactive, but not electronic, so we bought 3 bike wheels because our first attempt was to make whistles with pipes, place them on the perimeter of the wheels and make some noise with the air that occurs when the wheel turns.
We cannot do that, because the air was not enough, so we built a wood base on the wall for just one wheel to make it turn and we add elements from ITP labs to make noises when the people put this things touching the spokes when the wheel is turning.