Improv Everywhere: mass twins on subway

Mirrrrorororor
The wonderful Improv Everywhere's latest prank involved a bunch of identical twins riding the same subway in New York City. Human Mirror (Laughing Squid), Human Mirror project page (Improv Everywhere)

Previously on BB:
Food Court Musical by Improv Everywhere
• 207 pranksters stand still for 5 mins in Grand Central Staition