I made these along with the last pair, and thought they needed something else, but wore them yesterday and decided to leave them just as they are. I used a length of chain that I already had, which I connected to earring wires. Then I put each bead on a pin, created a loop and attached each loop to a link in the chain. I had enough to do matching beads on every other chain link. They move around randomly, and don't look like a perfect "every-other" pattern, and I like it that way.
I had thought they might need another bead too, you know three's a charm, but don't want to add the weight or the bulk to them.