- jump rings
- lobster-claw clasp
- two types of chain, preferably one more ornate chain and one simple chain
Also cut another small piece of the more ornate chain, about 2.5 inches long. Set it aside.
At the other end of the chain, put a jump ring through both chains. Put your smaller piece of the more ornate chain through the same jump ring. This will extend your necklace, so that it will be adjustable. Some days you may like it short, and other days you may like it longer, so why not be prepared for both, right?