The final step is to create the rope rings. Cut three equal lengths of rope; subject both ends of each rope to a lighted candle to prevent fraying. To join the ends together to create a ring, you can use tape, but we opted for a more resilient solution. We used 1/2" (13mm) copper couplings available at plumbing stores. The 1/2" (13mm) dimension matches the diameter of the rope. After pushing one end of a rope halfway into the coupling, we applied some construction adhesive into the coupling and then firmly pressed in the other end of the rope thereby creating a ring. The result is a very strong and attractive rope ring.