I don’t know if this will work but here’s giving it a try:
Instagram now has a video feature. So I have videoed me doing the hula-hoop.
You can see it here: Hula hooping on a summer day.
Wow. That works.
I like hula hooping better than the trampoline. Jumping on the trampoline makes the G-forces do strange things to your face. Of course, the picture is jumpy, but it’s less jumpy than on the trampoline.