Ambiguous Object Illusion: http://physicstoys.blogspot.com/p/physics-toy-store.html An incredible new design by Kokichi Sugihara of Meiji University in Japan, the inventor of this illusion and art form. A clever combination of reflection, perspective, and viewing angle produce this striking illusion. My vote for best gift from the G4G13 exchange this year. ➡️Follow the link above for info about this illusion, and for details about where to find the amazing items featured here on Physicsfun | Phy