Necessity is the mother of invention - there is probably no truer an axiom on the planet. Mostly, we invent new things and new ways of doing things because we need to. ;-)
So - I was out of bails one day ... and had already wired up the pendant, and the loop was too small for the chain. I didn't have a jumpring big enough or sturdy enough - but I did have some of these "S" shaped clasps.
So I used that to attach the pendant to the chain. And it works really well - and now it's a device that I use on purpose, instead of as an act of desperation!
And, as a added bonus, you can use it if you want to swap pendants on and off a chain. Remember to bend the wire to the side - just like jumprings - to open it. Don't pull straight out - doing that repeatedly will fatigue the metal and it will break.
And, we have some of these "S" hooks in copper coming live on the site on Wed!