Lickable TV
Professor Homei Miyashita at Meiji University in Japan has developed a monitor that can imitate on-screen flavors, appropriately naming it Taste The TV (TTTV).
How does it work? It uses a carousel of ten different flavor canisters that can mix the basic flavor building blocks in different proportions to create a variety of tastes, This is sprayed on a hygienic film overlaying a flatscreen which then rolls down much like those old continuous/circular cloth towel dispensers.