Not sure what this was about. But some of the local kids took part in this event at Union Square on Saturday. Organized by something called New Mindspace, they’ve organized giant Easter egg hunts. big Capture the Flag games, and Subway parties. Now this:

FEATHERS FLY AND TEDDIES SOAR AS YOU CONVERGE ON UNION SQUARE FOR A MASSIVE URBAN PILLOW FIGHT! SWING AND WHACK AS YOU EVADE PILLOW-WIELDING ASSAILANTS ON E. 14TH STREET. BRING A PILLOW TO THE SQUARE AND WAIT FOR THE SIGNAL. PILLOW FIGHT! 

There are a bunch more photos on   FLICKR