If I were stranded on a desert island...

   If I could only bring two items with me to a desert island, I would probably want to bring a boat and gas for the boat....so I could leave.  Of course that seems like the easy way out.  I realize a lot of people answer this question thinking about how to survive on the island, but I like to think about what I would need to get off the island.  If I can't bring a boat, and gas for my boat, I would probably bring a multi-tool to use to turn trees on the island into a raft, and some sort of radio or device that would work to call for help.  If I were really stranded and I hoped to find two items just laying about waiting for me, I would hope to find a fishing rod or fishing net and maybe something to make shelter with, like a tarp. It's all about survival right? What two items would you bring?