If you are an obsessive compulsive this LEGO Mindstorms Robot that sorts Gumballs by color may be able to save you countless hours of work! Just think no more late nights spent hunched over the coffee table sorting gumballs into their respective colors. For the rest of us this is simply a cool adaptation of some technology to perform a neat task. The LEGO Mindstorm system has been designed for flexibility, it looks to be using one of these HiTechnic NXT Color Sensors.