New York-based startup Barsys recently announced the Coaster, a smart saucer that guides the user on how to create a particular cocktail. By connecting the coaster to a smartphone with the complimentary app downloaded, users can choose from Barsys' existing library of cocktails or input their own recipe. Once a cocktail is selected, the user can simply start pouring ingredients one by one, and with each new alcohol or mixer, the coaster will light up when the correct amount has been added to the glass. The Barsys Coaster is regularly priced at US$149 (S$203), but interested customers can pre-order it here for US$95 (S$130). The device will start shipping in December.