Males of the ancient Aztec and Mayan civilizations wore intricately designed labrets (lip jewelry). They wore gold labrets in the shape of serpents, gold labrets inlaid with stones, and other sexy body jewelry made with jade or obsidian (volcanic glass). The Inuits and Native Americans of the Pacific Northwest have long worn labrets made from ivory, shells, bones, obsidian, and wood. Women of the Makololo tribe of Malawi have traditionally worn lip jewelry that is a bit more extreme. They wear plates in the upper lip. Not to be outdone, members of the Saras-Djinjas tribe wear plates in both lips that are sometimes as large as 24 cm in diameter.