First Aid; Pot; Matches; Ax FIRST AID: This is obvious. Besides cleaning wounds, and I’m going by the picture of the kit, you have a decent container, probably scissors, other small bottles to use once empty, tape of some kind (though undoubtedly not strong enough for anything but bandages) maybe some quick clot to stop bleeding, something flammable like alcohol. POT: Another container you can cook, carry/boil water in. MATCHES: Again obviously to make fire. You can use plastic from the med kit to keep them dry. The last one is tough. I always wear durable footwear so more than likely I’ll be in boots or a sturdy tennis shoe. And as far as TP I would just rinse off in the ocean. iPod/volleyball is worthless in this limited scenario; Don’t need a purifier when I can filter and boil water or collect rain water if there is no natural spring or river of some sort; pretty comfortable in knowing my directions (or possibly make a compass) I’m going to go with, AX: I could use this to cut fire wood, build shelter, dig, slice, and probably still be able to sharpen. Runners Up: Raft; Tent; Tarp; Rope; Knife