As nouns the difference between pottery and potty
is that
pottery is fired ceramic wares that contain clay when formed while
potty is a chamber pot used by young children while learning control of their bladder and bowels.
As adjectives the difference between pottery and potty
is that
pottery is having to do with pottery while
potty is (informal) insane.
As a verb potty is
(childish) variant of go potty.