White Martini Cocktail Glasses - Made from Unbreakable Polycarbonate Italian styled martini cocktail glasses in pure white or shiny jet black (see our other products for black ones). These cocktail glasses are made from a weighty, unbreakable plastic called polycarbonate - like the glass on car headlights or a fighter pilot's canopy. It gives them a weighty, solid, premium feel. Great for entertaining.