Re A different take on turned bowls
Think about the old collapsable aluminum cups you used to use when you were a young camper.
Take the piece of wood, and with your compass draw concentric circles on it that have about an inch variance in radius. Beginning with the second circle in from the largest, drill a hole just big enough to accomidate your #7 blade on your scroll saw, or what blade you choose. Set your scroll saw table at a slight tilt, maybe 5^(?). When you cut the circles, on your scroll saw, the slight angle will make something like that collapsable cup. I hope this helps you visualize the process. Of course you glue the overlapping segments together.
Best regards, Litlhof.