Coconut shell backing square pendant w/ Cab-Caban leaf 55mm. Coconut shells are sustainable and durable material that can stand constant wearing. Coconut shells add a raw appeal to your handmade jewelry designs. Coconut shells are made of coconuts primarily known for its edible white flesh use for cooking and baking. The hard shell is used for firewood in Asian countries, for carvings, buttons, belts and jewelry components.