Kumihimo is all happy-go-lucky once you string the beads. You just cross, rotate, cross, rotate, adjust tension, repeat until you've finished the rope and then you have this thing with threads hanging off the ends and then what?
I'm more than just not a fan of making a loop and fringey thing with the threads used to do the braid. It's just too boho hippie chick messy for my taste, though it's not unpopular in general as I've observed.
There are bead caps you can buy, wirework you can do, clasps you can buy to make it into a necklace, and often these look fine or even good, but that's not always entirely satisfying.