How do you sew a pendant on a choker?

Just want to ask an opinion. I got this piece of jewelry that looks like circle with a length of metal extending from it with smooth branches (like a fish's spine and ribs, only not sharp).

Which is designed to hang with the circle downwards. Since I had this idea in my head, I decided to make a velvet choker and managed to make one.

However, what still makes me wonder as to how I can possibly attach the pendant on the choker? I don't want to mar it forever by supergluing the back, and since it does come with a small jumpring, even though if I manage to sew it on, I know it'll dangle awkwardly when worn. I was wondering if anyone has any tips or thoughts, thanks!