A half baked idea, but what if you cut the narrow middle out of it, glue in something else that is contrasting to give you a reasonably consistent diameter, then use what is the left side in your picture as the top and the right side as bottom? I’m sure the bottom will have cracks, but perhaps you could glue in a new bottom with a floating cherry insert or even add a solid cherry circle. Will give this more thought, but that’s the first thing that occurred to me.
It won’t be solid top to bottom, so will be an art piece as opposed to a solid vessel, but I personally prefer that look to filling it if you can.