Penca de Balangandan good luck doorway charms common in the state of Bahia, Brazil. These charms or good-luck pieces were first worn by African slaves in Brazil in the 17th and 18th centuries. Sometimes given to slaves by the plantation owner as a reward for good behavior or loyal service or to mark special occasions. The shapes have different meanings. Some were hung in doorways to ward off evil or for good luck. The shape of the holder symbolizes the boat that brought slaves from Africa.