Lightweight Backpack Stove You can make this simple back packing stove with little cost ($0.25 US). This makes a great scout troop activity. What you’ll need: see website for info
Ultimate EDC Survival Kit Infographic! Download the high-resolution version here: http://www.bugoutchannel.com/ultimate-edc-survival-kit/ What the video here: https://youtu.be/Uff_R8jhoXg
550 Paracord Sling. Its not a DIY but it's also not that expensive and if you are already handy with knots and paracord, you could make this by studying the patterns.