Scotch, on the rocks? Down it chilled and undiluted with the Roller Rock Glass ($22). The Rock Glass allows your scotch to stay cold without compromising your drink’s rich flavor. The product serves as the ice’s encasing – put water in the Roller Rock Glass, freeze it and you’ve got ice that won’t melt away in your scotch. With the product’s unique design, the ice melts slower as your drink cools faster – allowing you the ideal on-the-rocks experience.