We didn't go down to Greenwich Village last night for the Halloween Parade, but we caught some of it on NY1. The creativity of some of the costumes is remarkable. People must spend weeks getting ready. One that struck me in particular - and unfortunately I haven't found an image yet - is two women who went as the Brooklyn Bridge. Each was one of the towers, with the deck of the bridge between them.
There is a lot of latent creativity out there, which presumably people do not have a full outlet for in their day jobs. The vaguely countercultural and clothes-conscious parade lets it flow.