Polygen

Source: https://github.com/obzerving/Polygen

More info: https://raw.githubusercontent.com/obzerving/Polygen/main/How_to_Use_Polygen.pdf

Draw target path

Draw your "silhouette" path and the centerline about which you want it to revolve. This must be an open polyline

Run the extension

Get the result

You need to duplicate the surfaces yourself