The dyes, generally variations of earthy browns and blacks, are obtained from mangrove sap, terracotta clay and specially prepared soot. Masi can also be smoked over a sugarcane fire to produce the tan-coloured masi kuvui. The designs vary from province to province. The most famous and intricate designs are from the island of Vatulele. The Lau group is also renowned for its crafts and particularly for the art of making fine Masi. The finest white masi considered to originate from Tonga. The Masi can be used as a permanent decorative piece in a house or a temporary decorative piece at various ceremonies.