Cinch tool

It can be tough to cinch a rope tight around a bundle, especially if it is a bundle of springy things like sticks or canes. Once you have it tight, you must somehow hold it there while you tie a knot. If the bundle then settles, the knot you have tied makes it hard to cinch yet tighter. You must cut and retie or tie it over again with more rope/twine.

I propose a cinch tool. I have linked an image - I am sorry it came out so small. It is made of two pieces of bamboo. One piece is a short round pipe, cut along the side to form a C. The end of the side cut is notched. After looping it one or more time around the bundle, the rope to be cinched is pushed in through this slot to lie along the bottom of the pipe.

The second piece is a "pinch piece" section of bamboo sharpened at one end. It is inserted through a shot at the top of the pipe so it meets the bottom of the pipe interior at an angle. The ropes run under this pinch piece. When the ropes are pulled forward through the tube the pinch piece can flex up to let them pass. However the ropes cannot easily slide backwards as the sharp part of the angled pinch piece cannot flex down or backwards. On cinching the bundle tight, a knot placed in the rope will ensure it cannot slide back through the pipe unless the pinch piece is broken off.

This cinch tool is made of bamboo because it is organic, durable, cheap and widely available. The tool size can be scaled up or down depending on the bundle size and the rope or twine used. I imagine someone good at it could make about one of these a minute.