Subway Whoosh + Hefty's = Super Fine Pop Art
Joshua Allen Harris' work is ingenious. An incredibly simple, common household item (garbage bag) makes use of disgusting subway toxins (exhaust) to create inflatable street monsters.
The New York street art periodically inflates and deflates (based on the running of the trains). When deflated, the art looks like another piece of NYC street garbage... inflated, check out the videos below: