While teaching fire craft at the World Scout Jamboree earlier this year, the most popular method of firelighting proved to be fire by condom.
Basically you put some water into a condom and tie the end. Then you manipulate the condom to form a lens shape.
Once you get the shape correct the result is instant. Personally I favour Crampball Fungus for this method of firelighting.
I’ve just found this video which demonstrates the method rather well.
