What do people do with the nylon ropes with a core to keep the ends from fraying? I know with the old hemp ropes you do a special "wrap" with thinner cord, but that wouldn't look right. I bought it to go through the holes in one of those little square drawstring rucksacks with the grommets on the bottom. Tie knot to secure it, but the cut ends???? Isn't there something to dip them in? Like a liquid plastic film? I know people used to burn the ends, but that doesn't look all that great on white cord. Maybe colored duct tape? Thanks for any help!