Clam Shell Bowl Clam Shell Bowl Spice Up Your Luau Party with Tropical Tableware The plastic shell bowl is perfect for serving your luau food with style! And since no Luau is complete until everything's Hawaiian, don't forget the tableware. Bowl is 18″ long with a 11½″ width and 7½″ depth. Made of pearl colored plastic. A must have Hawaiian accessory for tropical theme events like Hawaiian Luaus, under the sea mermaid parties, corporate events, weddings, and more.