I've been taking a pottery/wheel class for a few years. When you first start out on the wheel, you usually end up making a small ashtray looking dish, because

I've been taking a pottery/wheel class for a few years. When you first start out on the wheel, you usually end up making a small ashtray looking dish, because it's like a dish with grooves on the side where you messed up. The teacher always laments how no one smokes anymore and we have to just discard it instead of glazing it and using it as an ashtray!