There alternative ways of weaving hemp bracelets, in addition to the two usual ways. (The spiral and the spiral backwards) and there are sites that these models and add a few knots in the middle to create a pattern more interesting?
For free online instructions, see the hand by Elaine to elainecraft.com. She (I guess it's a she, anyway :-) has instructions step by step for many types of nodes, the node further half (the Sprial :-). Hope this helps!