Foam cups look like real sea shells. Cloth String. One size fits most. Trying to find the right theme for your next party? Try a Luau! This is our most popular, and most requested party theme. With a wide selection of tropical themed party favor and costume accessories you can make your Hawaiian beach party a night or day to remember. Clearance-priced items, glow items, light-up merchandise, and candy are not returnable. All sales final. Product Highlights: Child size, Foam cups, cloth string, Realistic looking sea shells.