Now that I had a translucent green ring I decided to embed a bright green LED in it. This is done by first hollowing out a section on the underside of the ring. Then cut one of the LED wires short and bend the other LED wire to fit the 3v watch battery (watch the polarity!)
Now make sure that the LED and battery can fit into the underside of the ring with the LED lighting up. You want the watch battery to essentially press fit into place in the underside of the ring. After testing the fit, remove the watch battery and glue the LED into place with some clear epoxy. Make sure the leads for the watch battery are exposed. After the epoxy dries just insert the watch battery into place and you now have a glowing ring! The battery is easily removed with a small flat bladed screwdriver to preserve battery life when the ring isn't being worn.