So I'm still playing with that bead I riveted, and not really coming up with any good solutions. I tried netting around some pearls, and it looks nice, but not with the bead. It's just a bit off. So I'll probably scrap that attempt. This may well be one of those things that just has to sit for a bit until I know what to do with it.
On another note, my turquoise arrived today! Lots and lots of beautiful baby cabs. I'm seeing some very labor-intensive projects in my future.