This is actually a very old post, I never got around to posting it (OOPSY!!) and now I came across it. you might have even seen me wear it in "this outfit post". Making a neckless like this is as easy as 1,2,3 actually... 1,2 :)
1. Get supplies; A clear rhinestone piece of jewelry and clear glass paint in colors you wish to use.
2. Paint, Let it dry, Et Voila!! Ready to wear! :)