Found a better link for braiding with a single rope, which I think has applications for jewelry (BRACELET).
DIY Heart Knot DIY Projects / http://UsefulDIY.com on imgfave. You could make this a necklace by getting some bulk chain, doing the knot with the chain, and then attaching a clasp! You could add beads too!
tan complicados, tediosos ... alamares!!!!! pero después son tan hermosos
How to knot a necklace quickly ? --> http://wonderfuldiy.com/wonderful-diy-knotting-a-necklace-quickly/
DIY Heart Knot Bracelet Pictures, Photos, and Images for Facebook, Tumblr, Pinterest, and Twitter