Once my friends and I mixed up some 'napalm' -- we dissolved styrofoam in gasoline. The resultant gooey mixture will burn for a long time. We then took it across a huge field behind his house where the local Catholic church had cleared out a ton of land. The result was a magnificently large pile of dead pine tree wood. For those of you aren't putting this together, I was playing with fire on top of a 50 foot pile of dead, dry, kindling wood.
It's a good thing we got bored with the napalm quickly enough.