Perfect for small drinks with a lot of flavor, these sour glasses are an angled cousin of the coupe glass. The stemmed design and sparkling crystal make it an elegant way to enjoy a Whiskey Sour, Amaretto Sour, or any cocktail served up. Perfect for small drinks with a lot of flavor, these sour glasses are an angled cousin of the coupe glass. The stemmed design and sparkling crystal make it an elegant way to enjoy a Whiskey Sour, Amaretto Sour, or any cocktail served up. Viski is a passion project of home mixologists that happen to know a thing or two about product development. Back in 2012, they were looking to stock home bars with quality glassware and mixology tools. But they found that most of the products available were either too basic, or favored fashion while forgoing function. This gave them an idea - to make refined, functional bar tools and glassware for home mixology enthusiasts like them.