I have a package of older exploding targets from Explorer Supply. It's the ones that don't make anymore, all the components are in the bag; you mix the 2 powders together, fill the little foam block, and stick the target cover on. Will fire with a .22. At least I don't think they make them any more......the ones on the market now loud different. So, the question is; should I make them and shoot them up, or do they have some collector's value?