I'm always looking to play around with new types of fire starting materials and I've recently stumbled across a very interesting one. Insta-Fire is a unique tinder that uses a blend of volcanic rock and wood pellets to produce a long burning, water proof fire starter. In the video above a small handful of Insta-Fire burned well over five and a half minutes under windy conditions and kept a steady flame (more than enough to start a campfire with even wet wood). One thing I like about this fire starter is that even though it's water proof, it's all natural and non-toxic. Also, they sell it in various volumes--everything from a 5 gallon bucket to small packages. I'd say most backpackers with decent fire skills could easily get a fire going with about a teaspoon or so making it very economical (both money and weight wise). If you're looking to try something new, you might want to check out Insta-Fire.