Why don't we look at this from the viewpoint of what problems are we going to have that can be solved with equipment. Example: sunburn - the dark tarp, water - machete for digging a weep hole or solar still if you find some clear plastic, you can dig sanitation holes, cut coconuts, cut fire wood, kill fish or Komodo dragons & the blade is longer & thus will stay sharp longer than an axe. If you dull the end of the blade digging, you can still use the rest of the blade for cutting. The sheath is part of the machete, so if you get a sheath that has the little sharpening part (military) you can resharpen it. Also, a magic marker to draw a face on your soccer ball (found on all islands).