Location: NY, NY
When the GOP held its National Convention in NYC, one man saw an opportunity. He had recently completed an internet-connected sidewalk printing graffiti bike and felt this would be the perfect opportunity to test it. The idea was that users would go to his website and type in messages which would be relayed to the bike, processed by a computer, and sprayed onto the sidewalk by mounted spray paint cans. The police arrested him before even seeing the bike, but you should definitely check it out.