The Couroc Company, founded in 1948 in Monterey, CA, produced beautiful and often whimsical black resin trays and glassware made by skilled artisans. Couroc's founder, Guthrie Courvoisier, worked with a variety of plastics while working in the war effort during WWII. He used his experience and developed a proprietary formula of phenolic resin material that was not only durable enough to form into trays but was also impervious to alcohol and flames. Courvoisier's wife, Moira Wallace, acted as Couroc's chief designer and led an art commune of skilled artisans in arranging an array of local items into Couroc's resin pieces.
Couroc's products were very popular and sold in high-end department stores. Alongside its whimsical designs, the company's saying for its trays stated that "Any tray can serve a drink. Only Couroc can start a conversation." The company closed in the early 1990s.