What's the difference between the metal and glass and clay vortex bowls? Everyone reviews the "vortex" bowl without specifying which one they are using, though I assume everyone is referring to a clay one.
If the bowls are clay, can't I just make my own? Fire it. Paint it. Glaze it. Viola!?
Last edited by Jonz; October 12th, 2009 at 09:45 AM.
Reason: missed a word