I make the taller bowls, like for ice cream, and then the lower, cereal type bowls. Both sell very well, and I love making them!! They are easy for me.
My best seller are the mugs. I don't like them, too many steps. Plus, I get a lot of orders for personalized ones, so I have to add the nameplates, which often crack off in the kiln. PITA. I make three, hope two come out OK. But they paid for Christmas this year, so there is that.