Jewelry Boutique

http://www.ijitsa.com/xcart/product.php?productid=16389&cat=306&page=1
how can I make a bracelet like this? with that wierd knot thing at the end?

also I know how to make normal hemp bracelets but I want to know how to do some of theese tecniques

http://www.ijitsa.com/xcart/product.php?productid=16233&cat=259&page=1

how would I do the adjustable thing on this one?

http://www.ijitsa.com/xcart/product.php?productid=16137&cat=262&page=1

how would I do this "chain" knot

http://www.ijitsa.com/xcart/product.php?productid=16180&cat=272&page=1

this one they call "fancy hemp" how could I do this knot

http://www.ijitsa.com/xcart/product.php?productid=16190&cat=274&page=1

this one is the round one. how could I do that

http://www.ijitsa.com/xcart/home.php?cat=266

and how would I do all theese three?

while your on the site, look at the leather bracelet part. how could I do that also.
any websites would be great! thanks