https://www.naturalstructures.com/aquatics_spray_mushroom.shtml

professional with installation would click-for-quote expensive.

Needs a big ass-pump.

You could diy it, but you'll need to be multi-talented

The dome is just fiberglass and expoy. The post would probably be best as steel. Dedicated pool pump, you'd have a hell of a time anchroing it into an existing pool.