This is a super simple, but useful way to make tactical zipper pulls out of paracord, heat shrink tubing, and a bit of fire.
The benefit of this zipper pull design is that it's silent - no jingling or jangling as you walk along. Additionally, the heat shrink keeps everything nice and tight against the bag, so there's no snagging loops or anything as you're walking through dense underbrush.
Most zippers will still have a zipper pull on them. Some are metal, others are some sort of string or cordage, often capped by a plastic bit that functions as the actual pull (these are what I had). There's nothing wrong with these, but I wanted something a bit more streamlined.
Remove the old zipper pull by any means necessary.