It is a FIGA. Years ago, a friend gave me one from Brazil and it was made of a carved hardwood. Here is what it means: "WHAT IS THE FIGA? Symbol of the age-old myths of Africa, this clenched-fist good-luck charm came to Brazil with its XVII century slave trade. As tribal memories paled over generations, belief in its powers to increase warriors' fertility also faded, but until nowadays it is prized by both men and women purely for luck. Ranging from delicate earrings to meter-tall sculptures, Brazil's attractive figa may be carved from wood or stone, crafted from plain or precious metals, and even set with gems. Tradition holds that, in order to bring luck, a figa must always be a gift." (from http://www.paulogualano.com/did_you_know.htm)