Quote from : Snuff Book

During the Cold War of the 1950s, American spies were issued eyeglasses with thick, clunky frames. If captured, they were trained to casually chew the curved earpieces, where fatal doses of cyanide were cast inside the plastic. It's these same horn-rimmed suicide glasses, the wrangler says, that inspired the look of Buddy Holly and Elvis Costello. All those young hipsters wearing death on their nose.