Didn't see any Make Your Own Gear thread so I am making one.

Currently making a leather sling bag for my offgrid travels around the world, and my idea for it is so unique to what I discovered I used and needed when travelling that I'm pretty sure this bag would suck for anyone else using it.

Pic unrelated.
Are you using anything you made yourself for your /out/side adventures or did you trash everything away to buy premade gear?