How to shape this?

[robert.unkauf]

Hey guys,

i want to build a flower pot, it should be shaped like the white part (turn 90 degrees right):

I tried with gemini but I ended up with this, I tried to multiply the part in a circle but I gave up. is there a way to finish it or should I start a new one?

[Xdrakosha]

The geometry isn’t clear enough in the photo, so I’ll show you how I interpret it, and you can tell me if that’s what you want.

This isn’t the final shape. I’d consider a combination of revolves like these.