I used ribbon that would fray to cover the rings. Some of this is Sari ribbon that I ordered long ago. A touch of glue helped hold the ribbon in place until I could wrap it with colored wire. Notice that the ends of the wires twist together inside the rings.
I made and used figure eight wire links in this piece and finished it with a handmade clasp. (https://www.wirejewelry.com/jewelry_making_tips_techniques/Perfecting-the-Figure-8-Link_439.html)
I adorned the center ring with extra ribbon using an overhand knot.