ooh, fire! Here is a good post where my signature is appropriate.
no matches required
potassium permanganate + glycerin + about ten seconds
I have about 3 gallons of potassium permanganate powder free from someone who no longer needed it for his water filtration system. The glycerin is available in many pharmacies. Pour the liquid glycerin onto the pp powder and stand back. The fire is quick and hot hot hot hot hot (>1000 degrees.) Make sure to have the kindling on top.
http://video.google.com/videosearch?q=potassium%20permanganate%20glycerin&hl=en&client=firefox-a&rls=org.mozilla:en-US:official&hs=kU1&um=1&ie=UTF-8&sa=N&tab=wv#
According to the guys that write the Internet, I can use powdered sugar instead of glycerin for a less intense effect. But it requires adding a little water to start the reaction. But never premix the stuff because it could start a fire by getting damp. Just think...START a fire with water.
warning warning warning - I cannot find specifics on the sugar mixture, but I do find a lot of hits about making bombs when I search for it.
I've read that both these methods are used in survival kits. And the potassium permanganate can be used to sanitize water for drinking.