CIMG7702 A swan and butterfly bike(s) by Cycle Circus Austin, displayed at the Maker Faire 2007. It’s hard to tell whether they are one thing or two separate machines. I don’t see where the pedals are on either swan or the butterfly, but maybe they are obscured by the wings.
Maker Faire was a two-day event that celebrated arts, crafts, engineering, science projects and the Do-It-Yourself (DIY) mindset. It took place in Austin, Texas in October 2007.