you need to learn the long turks head; won't come undone or slip off. download Gibson's Knots and Splices from Scribd; go to section on turks heads and see how they are done with "pegs"; setup like my photo below using paper clips for pegs; they can be pulled out later.
WARNING & DISCLAIMER:
SELECT AND USE OUTDOORS AND SURVIVAL EQUIPMENT, SUPPLIES AND TECHNIQUES AT YOUR OWN RISK. Information posted
on this forum is not reviewed for accuracy and may not be reliable, use at your own risk. Please
review the full WARNING & DISCLAIMER about information on this
site.