SOME anonymous pranksters are having fun with the Bryant Park fashionistas. This week, 5,000 copies of “WWWWD” — billed by an unidentified editor as “Fashion’s Own Onion”– were distributed around the tents, containing such satirical stories as “Yigal Azrouel Spring/Summer 2010 Collection Looks Better After Third Drink,” “Cash-Strapped Prada Launches Aggressive Word-of-Mouth Campaign,” and “Social Butterfly Genevieve Jones to Launch new iPhone App, iNeedAttention.” “We’re just trying to poke fun at the glamour and insanity of fashion,” an insider told Page Six.