I saw a few nice seats using the same concept in a shop in Gainesville. Baby House needed a chair so I threw this together. It was not a big hit considering it hurts your ass and you need decent balance just to sit in it.
I started this one drunk afternoon. Gave up when I realized we didn't have a back wheel that would fit, a headset that would fit, a seatpost that would fit, or a drill. Oh well.