If you didn't see Zachary Fowler and Chris Thron in their 30 Day Survival Challenge then you definitely need to get to youtube and check it out.
Zachary was the winner of Alone Season 3, surviving for 87 days alone in the wilds of Patagonia, and outlasting 9 other survival and bushcraft experts without modern luxuries, and with only ten items to aid him.
Zachary designed this Grim multi-tool to aid in survival and to give a handful of useful tools in a form factor that you can always have with you.
Knife
Fishing Spear
Tick Remover
Awl
Hooks(6)
Lures (3)
Spring Snare Triggers