Full disclosure: I have some history with the Cosmopolitan. As a college student in the late 90’s who watched Sex and the City, the Cosmo was my drink of choice. In those days, I was usually drinking them out of a plastic cup at my college dive bar.
(I wasn’t very picky. Or very classy.)
When my friends and I were feeling fancy, we would go to the restaurant in town that served them in a martini glass.