Give me your thought.
I can not agree with what you are suggesting, not worth it. I think easier carry a Gerber EAB with you, without the blade. After you landed, pick up a box of for $1 from local hardware store.
Just buy one when you get there, improvising a knife looks a whole lot more suspicious than if you forgot you had one one with you.Also be careful with the ferro rod, a lot of airlines wont allow people to travel with lighters now (they haven't for a few years, 2004 was the last time you could fly out if Beijing with a lighter). So an alternative means of making very freaking hot sparks will be treated with suspicion
Are you worried about the plane crashing and needing to survive? If so your kit is going to be worthless compared to the plethora of items that could be scavenged from checked in luggage and the plane itself. You can worry and plan for this but your chances of being in a plane crash are remote and your chances of surviving are just as bad. If you are that concerned you might as well wear a helmet and life jacket as soon as you board.If it were me I would stop worrying so much about trying to break the law and start worrying about things you can actually change without going to jail.
Thinking of lighters, has anyone here flown with one of those USB lighters? The ones that have a heating coil like a car cigarette lighter and a battery all packed up to look like a 2xl large thumb drive or cell phone battery.Just a thought as we are talking batteries and steel wool at this point.