Everybody loves a good chainsaw, but typically they don't fit in your pocket. On top of that, they are heavy, loud and dangerous. Replace the gasoline engine of a standard chainsaw with your arms and you've got a portable and versatile tool for cutting firewood or trimming trees. It isn't nearly as fast as a motorized chain saw, but it is faster than most other hand held saws and it is much more portable.
For this project you'll need a chain saw chain, some nylon webbing, some waxed linen thread some paracord or similar nylon string, a needle, a hack saw or band saw, and a few matches.
Start by cutting one link of the chain to break the loop. Chain saw chains are made of hardened tool steel so cutting them is a bit of a challenge. Unlike a bike chain you the pins are flattened on each end, so a chain breaker won't work. I used a bandsaw for this step, but if you don't have access to one, a hack saw will work (it'll just take much longer).