More knotty stuff on my blog: Stormdrane's Blog
Cyber Skull beads provided by Schmuckatelli Co.
The video demonstrates how to tie a two-strand and an extended/lengthened two-strand Matthew Walker knot, knots #s 776 and 777 in 'The Ashley Book of Knots
'. They can be made even longer, but I usually just keep them short with paracord lanyards/fobs/zipper pulls as shown in the video.