Coaster Light
When you add a little change to a common stuff, sometimes it change the ordinary acts to special experience. This coaster lights when you put glass on it. The light makes beauty reflecting to the liquid and ices in the glass. Both the coaster and glass are looks ordinary but they become special ones only when they meet.
The only way to design experience is to experience for yourself by making prototypes. This coaster has a sponge inside and the top sinks a little by the weight of the glass you put on it. This mechanical structure realize the function without complex structures or sensors. Moreover, the structure became simpler by using the metal of the housing as a electrode.