Greetings- Husband made me a 12"round concrete ball with PVC thru the middle for my fountian. We stained it terra-cotta and we love it. HOWEVER, I'm starting to accent in the gardens with alot of the colbalt blue ceramics. We asked a local potter if he could make a glazed ball with same dimensions and make it a useable water feature. He has put me off so many times that I'm ready to move on for another source. Has anyone made a ceramic sphere for a water feature or do you know where I could purchase one? thank you for your time.