Why not just drop a tube of Neosporin/Polysporin antibiotic ointment in a pack pocket? I think that stuff is flammable too, although it won't take a spark from a ferro rod, but I doubt the zipper pull would either. And Neosporin is also of use as a first aid item. There are not many alternate uses for a zipper pull, plus, these flammable ones seem kind of expensive.