Got some rocks from a supplier today. Just for kicks and giggles I got some pre shaped fiber optic arrowheads. they are slab and kind of small. I tried it and like I said. I am keeping some of them in my kit. When I am somewhere and someone new is watching in an interested fashion. I am going to sit them down and have them pressure a fiber optic point. It is easy (easier than glass or obs). Almost assured of a point. What better way to get someone hooked than to have them successfull on their first attempt.