Just randomly stumbled on this oddball pot making video, it uses a mix of wheel and a template to cut out the form. It was rather interesting. I've been learning about pot making over the last year or so and have not seen anything like this yet.
Oy! That is a hell of a lot of engineering for a pot that I could whip out in an 1/8 of the time. And they’re so friggin’ small. I am thinking they are cement too, not clay. I’ve never seen anyone use a compacted sand form to support slip.
You can use all kinds of templates for production wheel throwing, so that isn’t uncommon, especially if you are trying to make a matching set. But rarely is it done on a CD rom drive.