Thank you for all your replies! This is my original idea that I've landed on (so many ideas... ), but I'm open to suggestions . I am planning a combo of wheel thrown (the center "stem", which goes all the way to the top to become the center of the flower) and hand built (the flower and leaves). In the center there will be a place for a bolt (there will be a hole in the glass) and then secured by the ball on top, as well as glued to the glass. Look forward to your feedback!
**Edit: forgot to mention there will be 4 of these legs