You're telling me, sister, but there's a few decent ones. My only 'active' hobby is aeriel hoop fitness, which is basically exercise on a sturdy and suspended hula-hoop.
You can do it with silk too, but silkburn isn't a myth and hurts. Your empty home is your oyster of 'do what you want.' Go nuts, race some pigeons, and you can dance like no one's watching you.