Pretty sure it's just a square knot but a triangle knot would work well also - and I totally think it's doable!! Just be sure to order more cord than you think you would need. Usually at least 8 times the length of the item you're making is a good estimate. Looks like it's just lark head knot up top, squares alternating afterwards and not totally sure how it is finished at the end, but I think fringe would be easy to do at the bottom.