Hit the web to order up your custom-color cotton candy from this machine (translated). A computer monitors a web interface for an incoming order, then pushes commands to an mbed microcontroller which dispenses three different colors of sugar to whip up your custom shade of the cottony delight.
In addition to the sugar dispensing system, the candy maker itself is also a do-it-yourself design. It looks like the most difficult part of this project was getting this component right. They’ve got a collection of videos documenting the multiple attempts on the road to success. Once dispensed, the colored sugars make their way into a spinning metal cylinder where they’re heated by the flame from a butane candle lighter. Eventually the team manages to get cotton candy to form but we can’t help but feel like they’re trying to reinvent the wheel with this one.