From Improv Everywhere:
For our latest mission, we had 100 people camp out in front of a 99 cent store in Manhattan on Black Friday. Participants arrived early in the morning with tents, chairs, and sleeping bags, making it look like they had camped out overnight. When the store opened, the crowd rushed inside and made purchases, buying 99 cent items with glee. Actress Cody Lindquist posed as a local NBC news reporter and conducted interviews with confused and delighted store employees and passersby.