The short version: The percussive sound of a baseball card stuck in my spokes when I was a kid inspired me in 2003 to start building a spinning music machine. My latest version is made out of repurposed 3d printer parts and a brain surgery motor. Future plans: To build a version with a motor that can lock to a very specific rpm so that I can play in sync with computer music. I also want to perform on the tonight show, I think Jimmy would like it :) The long version: When I was a kid I used to ride my bike around the neighbourhood in the suburbs of Ottawa with a baseball card stuck into the spokes with a clothespin so I could pretend I was riding a motorcycle. I always loved that sound. A few years later as a young broke backpacker, one day when I was busking in Amsterdam I suddenly remembered that baseball card and thought to myself “..If I remove enough spokes from a bike wheel, I could create a 4/4 rhythm of 16th notes, that would probably sound cool!” and I imagined a bike with