Long Layering Necklace with Cowrie Shells Mermaid Beach Necklace, Ethnic Inspired Shell Jewelry Cowrie Shells, Crocheted Hemp This is a hemp-shells version of my usual 52" long layering necklace I make with semi-precious beads. The necklace is crocheted with a variegated hemp cord, with the shell beads evenly placed. I put a loop on one end, and a shell on the other for closure. The loop can also be put over any of the Cowrie shells, so be as creative as you can wearing this necklace! It is simple, decorative, a great layering style, and can be worn in several ways! - see photos for inspiration.