easiest final boss?

[§håd0w]

I know how to get Pumice, but where do I get a hammer to creat another Pumice Piece? I've already beat Hades (total pushover) and have 3 Robe of Lords, 1 Running Shoes, Protect Ring, and something else I stole from him. But I can't find Hammer

[Xander]

I *think* hammer is the thing you get from collecting all 13 stellazio (or whatever their called) coins and giving them to that Queen. If that is the same hammer? (apparently it gives you an extra ending as well).