Australian company Mutant Designs knows how important it is for hikers, campers and other wilderness adventurers to have the proper survival tools. So they've created an all-in-one tool that can be used as a knife, axe, spear, grappling hook, or even a hammer. The tool is still in the prototyping stage, but the prototype is available to be purchased as a download. Read more at 3DPrint.com: : http://3dprint.com/105545/mutant-design-survival-tool/