The most fun part of being dressed as Frankenstein's Monster is that wonderful feeling you get correcting all the people who erroneously call you "Frankenstein." It's the joy of Internet comments, manifested in the real world.
If you've never played Shadow of the Colossus, just trust us that this Stone Golem costume is right on the money. The next challenge: explaining to your wife why you chopped up every mattress in the house.
The worst part of dressing as The Corpse Bride on Halloween is having to explain to everyone that it's not from Nightmare Before Christmas. It's from that other Tim Burton movie filled with ridiculous puns. You know, Batman.