Polynesian garlands, also known as leis, are traditional necklaces made of flowers, leaves, shells, and other natural materials. They are often given as a sign of love, friendship, or respect in Polynesian cultures. Leis are typically worn during special occasions such as weddings, graduations, and birthdays. The term lei is derived from the Hawaiian word for 'GARLAND, ' and is used to refer to these traditional necklaces in many Polynesian cultures.