In order to make a neoprene necklace, you will need the following: neoprene, scissors, end caps, clasps, glue, and 2 pairs of pliers. Cut a piece of neoprene. Make sure that it is cut 3/4 of an inch shorter than you want it to be. Add a little glue to one end. Place a round end cap on one end. Place an identical end cap on the other side, by this same method. Allow it to dry. Open the jump ring, using 2 pairs of pliers or a jump ring tool. Slide one of your end caps. Close the jump ring. Fasten the clasp to the cap on the other end. Make sure that you close it tight.