LEGO Mindstorms NXT 2.0 Color Sorter robot in action For his TechRepublic Geek Gifts 2010 review of LEGO Mindstorms NXT 2.0, Wally Bahny built the Color Sorter model. See the Color Sorter in action. [newsletter id=e019 copy=Automatically_sign_up_our_Tech_Sanity_Check_newsletter!]