Make people stop staring at the papers, drop their phones, and laugh and have some fun. This is the main purpose of the game that started in New York in the year 2002 and grows with each passing year.
In Berlin, Vancouver, London, New York and several other cities of the world passengers took off their pants and embarked on public transport causing astonishment and much laughter wherever they passed.
Through photoshop, some artists made fun pictures.
More info: designcrowd.com