a ‘Chinese Crown loop’ from a Constrictor knot
i came across this Chinese crown loop formed from the folding mechanics of a Constrictor Knot:
deconstruction shows a Bird’s Foot Bowline under it and a Left Hand Bowline under that.
there is also this variant but i don’t think it’s as stable.
deconstruction shows a ‘SK..X..X..Up’, and its antibowline under that. fun!