How to make a spinner ring/spinning connection

Hello all,

I'm trying to figure out how to make rings/connections that allow a bead or stone to spin freely. i've seen this in the abacus jewellery made by Danielle Miller (pearl or gold bead) and also in work by Victoria Takahashi. The connecting silver has a little ball at either end, but presumably they can't be soldered at both ends or the pearl/stone would crack? Anyone know? I'm stumped. :-O

Danielle Miller Jewelry...dynamic motion = pure joy (see header!)
E896 Turquoise Swing earrings by Experimetal on Etsy

It is a puzzle, but why set out to copy someone's design exactly,when it is their stock-in-trade? You can achieve something similar by using tubing, which comes as thin as 1mm and spreading the ends into slight countersinks. Alternatively you can draw a bead at one end of the wire and add a decoration at the other with a miniature tap and die set.
You can also regulate the spacing of the beads by sliding on short lengths of tube one size larger. Kind regards, Dennis.

I do this style of spinner by drawing a bead on one end of a piece of wire and soldering another pre-made ball to the other after it's fitted. Any glass/gems/pearls have to be protected with paste, but it works fine. It's a lot easier to do with a rivet though.

Thanks both. I wondered whether these were some kind of rivet, but the end looked too rounded.

I have just been to a bead fair *cough* so now I may have to do some experiments.