Richly shaded in blues and greens, these delicate, wafer-thin earrings are made from capiz, the thin shell of a marine mollusk. First artisans wash and soak shells. After the shells have dried, they are cut into shapes and edged with metal wire. A finishing coat of varnish completes this labor-intensive process. Before glass windows became available in the Philippines, Capiz was used for windows in houses.