Gaucho Knot- recently learned to tie this. The base knot is a 5l 4b turkshead. There is a huge world of interweaves to learn but this was a satisfying first step. :
Paracord square crown sinnet and Gaucho knot lanyard/fob..… | Flickr
One two three Grafton variation of the gaucho knot - Paracord guild
How to tie a gaucho knot - Paracord guild
Gaucho Knot Bracelets — Park Place Arts
Stormdrane's Blog: A gaucho knot bracelet
File:Turks head PARACORD slide. RAINBOW COLOR Variant of a gaucho knot 3-2-2-3.jpg - Wikimedia Commons