The cadets ( 15-17yrs) in my survival class carry both a tampon and a PJ based lipbalm.
A Tampon can be used as a sterile wipe for wound cleaning ( theye are sterile till the plastic is broken) padding for a blister, final part of a water filer, making fishing flys, wound cover/dressing ( although I would wet it with clean water first) ear plugs nose plugs for bleeds. Dare I suggest perfect for plugging a bullet hole in flesh in an emergency ( but I have no experiance with that)
PJ based lip balm, is good for lips, small cuts, mixed with a bit of tampon it makes waterproof earplugs.
and when you combine the two you end up with a very easy to ignite tinder that I have had burn for not quiet five minutes.
the more PJ you work into the tampon the longer it burns. If your having trouble getting ignition make sure the bit the sparks are hitting are teased out finely. if you tease the whole thing out finely it will burn more quickly therefore at a slightly ( in the scheme of things) hotter temp.
A little bit of the PJCB mix wrapped around a twig makes a taper, anoher small bit wrapped around a sliver of rubber inner tube will ignite that ( I haven't had any success with lighting rubber from a spark , never tried actually)
I have used lip balm as a lube when I forgot to bring the oil for my 9mm and I burnt it off. and I had a mate who used it as a lube to stop chafe.
Fatwood isn't readily available here.
Oh yeah I also get them to carry a pencil sharpener, perfect tinder from standing dead wood every time
Carl