When I was a young Boy Scout I was taking a class at summer camp to get the "Wilderness Survival" merit badge. I don't remember the details, but one of the requirements was to make a fire by three different methods, one of them being flint and steel. One of the boys had a little wheel that you could rev up, then push a button and it shot a stream of sparks into your tinder. I never saw it, but heard about it from a bunch of the kids. I have never been able to find anything like that, but thought this might be close. Has anyone ever seen what I am talking about? This was more than a couple days ago, so the details aren't there...