Annie wanted to make a big round sculpture so she started by incising pieces of clay and place them inside a big plaster mold. She then completed the globe using coils of clay to form the top sphere.
The globe is taken out of the mold and patted into shape. We wanted round, not pudding!
As long as a shape is completely closed up so that no air can escape, it can handle a fair bit of abuse. But once you create an opening and the air escapes, you will need to make sure that your piece is properly supported.