The Unicycle wheelchair was brought into the commercial sector at the very second the bee gees popularised close harmonic singing in tight trousers. Although, like toasters, expensive at first, the next christmas every household had one. The ratio in Belgium at the time of Michael Moore's conception was 12 unicycle wheelchairs to every 5 people with cheshire cats.
Through these developing years, people began to tamper with NASA's creation. Gentleman would "PIMP" or "ICE" their "RIDES" by adding "HARDCORE" propulsion systems and a "SICK" paint job. Ladies were not so intent on being the flyest mutha so were content with fluffy dice and a sombrero.
Today they are popular still, especially around buckingham palace.
"Is it a bird?"
"Is it a plane?"
"No, by Jove, its a unicycle wheelchair"