I love the routine. I would just keep your eyes open at thrift stores. It needs to be opaque and the side of the bowl should be curved a bit but so you can pick it up easily. Those are my only tips really.
Something like this looks nice, you can get it at Crate and Barrel.
This is one of those things that you can customize pretty easily as well, so really it depends a lot on the look of your show and your character.