I saw this on boingboing.net today and thought it was worth sharing.

They write:
Flickr user Daniel W lovingly documents his wonderful Hallowe'en cardboard maze: "Constructed out of cardboard boxes, duct tape, and 300 bolts. The maze spans two rooms and a hallway."

Cardboard maze. 300 bolts. In his house. I don't know whether to applaud the guy, or send help.

More pics here.