For Rent Cheap, with a Catch: It's a Mattress Stuffed in a Hole in the Wall.
One night, 3 architecture students living in Brooklyn decided to stuff a mattress into a hole cut into a wall & listed it for rent. To their surprise, they had potential taker...
https://www.neatorama.com/2006/02/06/for-rent-cheap-with-a-catch-its-a-mattress-stuffed-in-a-hole-in-the-wall/