This bookmark is floating around on the internet for use in TN's. The picture is a stock photo of the knot I am talking about. In the tutorial MyLifeMits puts little weighted balls in the knot to give it a little heft and staying power. She also used leather cord rather than paracord. If you do a google image search you will see variations on the bookmark. Her tutorial, found here is really good. She also gives a list of supplies ~ which is very short....enjoy!