What’s inside? Starting from the notion of interacting with a visual environment and faced with the need to make something physical, the students suggested a fabric-based controller. Through a series of experiments and more brainstorming, the students used an intriguing idea: place a light source inside a dark, opaque rubbed trash can with a camera–an EyeToy, in fact. After melting the first barrel with holiday lights, the students opted for a “strip light” and a piece of diffuser used in ceilings, as shown in Figure 2.