This bowl has been made by slip casting the various components separately. When they’ve dried out a little bit you then assemble them together inside a press mold. It is a fun and very rewarding way to work because you can create the most intricate pieces that are both light and structurally sound. And of course you can use the method for creating sculptures and other art objects as well.
Another lizard bowl with different oxides and glazes.
I am sure that everyone has their own method of slip casting, but this is a post showing a bit about how I work myself and how I teach the method in my ceramic workshops https://annakeiller.wordpress.com/2011/11/12/slip-cast-bowls/