Nightmarish photos that have no explanation

Photos can easily be made creepy when you take them out of context and just present them like they are.

Explaining what's going on in the photo makes it easier to deal with, and makes a scary photo just an unusual one instead.

However, of the 17 photos in the gallery, some of them have no explanation other than "Vintage halloween costume."

Can you explain what these people are doing? Have a look through the gallery and find out.