Has anyone tried super fine #0000 steel wool? I haven't tried it myself, but have read that it will catch a spark from a ferro rod, can be lit with a magnifying glass, or with the battery out of some device you might be carrying. Are these true claims, or internet fantasy?

Sounds intriguing. I'm a little skeptical (does steel really burn?), but I'm also a little hopeful. Some day I'll get around to remembering to try it.