18650 battery holders,does anyone make them?

[divinginn]

I am in the process of building a cannister dive light using a maglight and a p-7 led,I have the light up and running,now I need to build my cannister. I would like to use a 3 cell battery holder wired in parallel to fit in a compact cannister I can mount to my arm,but have had no luck finding one,are any available or will I have to hob one togather.