Once you have the hang of the basic bracelet/collar, you can add another layer of cobra stitches overlapping first set of knots, called a king cobra stitch/doubled Solomon bar/doubled Portuguese sinnet. The amount of cord used for a king cobra is about twice as much as for the regular stitch. Glow-in-the-dark cord can be found at CoolGlowStuff.com
. Both the 1/16" and 3/32" sizes work well for the bracelets and can be used alone or combined with paracord.