Another thought. I assume you want to catch a spark and puff it into enough flame to start a fire under survival conditions. Here's a tinder combination I perfected attempting to burn down my garage (at least, that's how my wife sees it).<br>1/2 a pad of 0000 steel wool. Spread it out thinly, about 14"square. Top with a layer of vaseline impregnated cotton: melt the vaseline and soak a fist size wad of roll cotton (first aid cotton). Pull out the cotton until it's pretty thin and gauze-like, and top the steel wool.<br>Now roll it up and cut into whatever size pieces you want to stow in your kit. Unrolled, this combo catches sparks and then puffs into flame like crazy.. even if it has been wet. The cotton doubles as a dressing. The steelwool can (with luck) be used with a battery as another fire starter.<br>Char cloth is a great traditional approach, but I seem more competent with my approach.<br><br>