A Reimiro is a decorative crescent-shaped pectoral ornament once worn by the women of Easter Island. The name comes from the Rapanui rei 'stern' or 'prow' and miro 'boat'. Thus the crescent represents a Polynesian canoe.
Each side of the Reimiro ended in a human head. The outer, display side had two small pierced bumps through which a cord was strung for hanging it. The inner side contained a cavity that was filled with chalk made from powdered seashells. Although the human heads on the reimiro are unique to Easter Island, the pectoral itself is part of a wider tradition. In the Solomon Islands, for example, women wear shell pectorals which resemble reimiro.