I noted the paucity of good Halloween costumes in my previous post. Seems like I'm not alone. A fellow who has been charting self-identified costumes for 5 years saw a spike in "nothing" up to the second most common costume among trick-or-treaters at his California home. It's national, I suppose.
Kids these days!
He lists each costume the kids say they were dressed as, and does say that homemade costumes were more common than usual which is nice. "Tie Dye Person," "Emperor of Evil," and "Nerd with mustache" show some panache as concepts.