The steel that you use to make sparks. Fire steel or High Carbon Steel that can be scraped to create sufficient sparks to make a fire: Does this material exist manufactured in an urban environment? What I mean is, can this stuff only be made by an iron worker or bought for this specific task or can it be salvaged from some common parts in common use? Say a cast iron skillet, saw blades etc. Wanna kill these ads? We can help!