The Optical Illusion That Keeps On Pouring While Suspended In Air. Watch in amazement as liquid actually appears to be pouring into a mug, out of thin air. But listen, there's moreùyou can actually hear the liquid splashing, and touch it, it's wet. ON TAPS modern design and built-in light make it a hit anywhere - home, office, kitchen or den. Included with the unit is a chrome plated water tap and a special can holder which allows you to use your favorite beverage can. Built-in light source, plug into any AC outlet.