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
DIY your photo charms, compatible with Pandora bracelets. Make your gifts special.jpg - Similar to the River Bar pattern except the "B" cord goes front to back through the outer loop. Nice "X" pattern in this one.