Imagine drinking copious amounts of alcohol, all while staring at this "waterfall" optical glass bar designed by Tokujin Yoshioka. You would be heading to the bathroom every 15 minutes. In reality though, no actual water is used. The effect is created using an optical glass block that is crafted in such a way that it gives the impression of flowing water. An interesting design concept for sure, but if I were a bar owner I would think twice about installing it. Water bills from frequent flushing can be a bitch. Additional image after the break.