Safety pin or paper clip with be easier and stronger. You just need to find a stone you can grind the paper clip to a point on. <br><br>However, realistically, if a commerical bird goes down, you don't need most of your PSK. You either die, or they find the plane pretty [censored] fast and get someone there within a few hours (that is worst case, at sea, and you stick with the rafts).<br><br>Speaking of water landings and commercial air, has anyone ever successfully made a waterlanding with a jumbo? Has it ever been tried?