Vintage good luck charns

I am unsure of the meaning of these , but this is what i found These charms Depict Two "GODS" Of The Pangwe People, Also Known As The Fang These Two charms a Are Unique Among Themselves! The Female Is Typical Pangwe Style! She Has Large Earrings In Both Of Her ii!! Both Of These Figures facial features Are Very Detailed And Distinctive! My grandmother said you are to wear them on your shoulder for good luck Im not 100% sure all this info is accurate,and i believe they are metal Both Are In Excellent Condition!