So, I need help coming up with HP and Hardness for a Magical Wagon. I'm thinking of making it large rather than huge or bigger because it's supposed to be something like a Clown Car. In fact, the spell on it makes a continuous stream of Clown Goblins (Goblins with 7 levels in the Clown class) pop out of it. The only way to get it to stop spewing goblins is to break the thing, but I can't figure out how hard that would be. I don't want it to be too easy, but not too hard either.
Thanks!