We love the work from the team at Improv Everywhere.
In their latest mission, they assembled a group of 24 actors and staged an unauthorized boardroom meeting in the office chair department of a Staples. They used the chairs that were already in the story and arranged them in a boardroom configuration.
Actor Will Hines gave a presentation to the board, using a whiteboard and an easel he had bought from the store just minutes prior. Minutes into the meeting, the board was asked to leave by a confused store manager.