Here's how it works:

(Apologies for the floundering electric eel effect. Oh well.)
I've built a number of these for fellow burners, and figured that if anyone else wanted to give it a try, it was worth putting the plans on the web. So here they are. I tried to be as complete as possible, which is a lot to get through but should simplify your build. http://ricochetshot.wordpress.com/2015/ ... -luminous/
Of course I'd love any feedback or suggestions. Well, not ANY feedback or suggestions....