Image: Underwater witch at Halloween, Rainbow Springs, FL, mid-1950s. Via Flickr Commons, from Florida State Archives.
I'm thinking of going as "Sexy SQL Database," or maybe stringing a bunch of hard drives and shredded FOIA documents on a blood-red ballgown and going as Wikileaks. How 'bout you? Your ideas for the BoingBoing-iest homemade costumes welcomed in the comments.