I got the stuff today. Total cost was about $3 for this stuff. The chick at Michael's loved my $.56 transaction.
Cut down to size.
Looped first, then tightened once the stone was on.
Final product, I guess
This is just a mock up, since I don't really know what I'm going to do for the light. I have a 70watt metal halide, but I'm not sure if the electricity consumption will be worth it at this point.