Improv Everywhere is a NYC-based prank collective that causes scenes of chaos and joy in public places. The event is to create many improvised posters made by anyone who wants to participate in the event. It includes a tool kit filled with different utensils and paper needed to make the posters. Everyone is able to use anything they want out of the toolbox to create whatever poster they want. At the end or beginning, they stamp the poster with Improv Everywhere's logo to finalize it.