My wife and I were watching a prank TV show tonight and were introduced to probably one of the funnier movements going on in NYC that may not be well known here in the South: a group called ImprovEverywhere! We saw the "No Shirts" prank and found it funny enough to explore into the site and found even more hilarity in their tactics. It's almost priceless!
Also, just something extra: check out Ciril Yakayama. This very well could be one of the greatest street "magicians" I've ever seen. Check the Head Trick.