Although similar in concept to regular tassels, I-cord tassels have fewer, thicker strands, for a different look.

2: The lengths are attached at the point of the garment by tacking them down (several stitches) using matching yarn threaded onto a blunt, large-eyed (tapestry) sewing needle.
3. As you can see, a short length of yarn is wound around the cords, perhaps 1/2 or 3/4 inch down from the connection point. This joins the separate lengths of I-cord and prevents them sticking out in all directions, while creating a small bobble above for the winding for the classic "tassel look."

One final tip: The ends of all the sewing and winding yarns are simply hidden in the center tube of the I-cords, making this an easy-peasy project, indeed.
--TK
You have been reading TECHknitting on "I cord tassels."
You have been reading TECHknitting on "I cord tassels."