Outside of the turks head knot variants, there are few techniques that are appropriate for making paracord knife wraps. I found an image of a knife wrap that David Hopper made. It was a recreation of an old sword wrapping technique
How to write Kanji. Writing kanji correctly takes years of practise. The strokes(lines) must be done accurately or no one will read it correctly. The order and direction of the strokes is important too!