.
A tactical/survival knife:
A swiss army knife to use as a tool:

And a tent bed to sleep on and keep warm:
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I've changed my mind. I'm going to take Megan Fox:
http://images5.fanpop.com/image/photos/30800000/Megan-Fox-megan-fox-30892221-1680-1050.jpg
Some gaffa tape and a hunting knife.
I don't know how long we'll survive, but at least I'll have some fun in the meantime.