Yoga sex ball?

Hi there, I'm pretty new to this sub but I'm certainly not new to toying around with my partner :)

We have a pretty large collection of gadgets but she has recently expressed interest in some sort of "sexercise" ball or dildo yoga ball. I was wondering if there were any products out there like this that you could recommend... or even a harness that might fit on an inflatable ball so that we can try to use one of the dildos we already have.

Thank you so much guys!