For a robotics project, students built a disco scene in a box painted black and white, with a cardboard DJ turntable, bottle cap turn tables, a dance floor made of lights under plastic, a servo-powered disco ball that spun as lights flashed, and printed people glued to the dance floor. If redoing the project, the student would add working sensors so lights turn on automatically, include a disco song playing during the light show, and possibly a dancing figure.