This "Triple Bespoke Glass Sphere Water Feature" by Tills Innovations in the UK uses a polycarbonate sphere that fills with water and has water flowing down the outside of the sphere. This is the type of sphere we will use for the top of our entry courtyard fountain.
I love Humphrey's copper fountains. As a retired goldsmith his work shows grace and finesse - no-one does it better. The copper changes colour as it weathers to verdigris. And the water tinkles as it drips down from leaf to leaf and then into the pool below.