If it REALLY NEEDS to be lit, I use a plastic film cannister filled with Thermite. I light it with 6" of magnesium ribbon. Bury 5" in the thermite with 1" sticking out. It still takes a BIC to light the ribbon!

If you would rather just email an order OF PRE-MADE kits -
http://www.alphachemicals.com/thermite_fire_starters

Or if you want want enouth Thermite for a life time of getting lost -
http://www.alphachemicals.com/inc/sdetail/2683
The Magnesium ribbon is extra but ships free.