The Cyclo Knitter is a bicycle-based machine by design student George Barratt-Jones. The contraption is made from a simple combination of wood and bike parts, and allows one to knit a scarf through light exercise. Barratt-Jones came up with the idea one day while waiting for the train in Eindhoven. His invention allows other riders to stay warm while passing time on the platform, and step away with a winter accessory.
If you like this creative knitting mechanism, check out the Rocking Knit, a rocking chair designed by Damien Ludi and Colin Peillex that converts rocking into knitted hats.