This is a round pearl shaped cup made of white plastic, marked "Trader Sam's" on side. It was issued for the grand opening of Trader Sam's Grog Grotto at the Disney Polynesian Resort in Orlando, Florida. When the Polynesian Pearl Cocktail is ordered (described as containing RumChata Cream Liqueur, Grand Marnier, and Cinnamon with Tropical Juices), a large glowing clam shell behind the bar lights up and opens as the bartenders grab a pearl to fill. One out of every 100 pearls is a black pearl.