Charlie Todd Sidewalk decal sets impromptu dance parties in motion Rusty Blazenhoff

East River This very socially-distanced office is floating in the middle of the East River Rusty Blazenhoff

improv everywhere New Yorkers plug in giant boombox found in Manhattan, surprise holiday party ensues Rusty Blazenhoff

co-working spaces Phone booths in NYC turned into co-working spaces by prankster group Rusty Blazenhoff

Pantless and proud NYC (and beyond) Peeps: The No Pants Subway Ride is happening again Rusty Blazenhoff

Hallmark Improv Everywhere 'lights up' random New Yorker's sentimental holiday messages on a 30-foot screen Rusty Blazenhoff

Pop up prank Pranksters create fake Apple store at subway station with 50 people waiting in line Carla Sinclair

2016 sucks Improv Everywhere: Declare your love Cory Doctorow

improv everywhere Improv Eveywhere's "Surprise Press Conference" – a scrum for everyone Cory Doctorow

improv everywhere Improv Everywhere: Dance Captain Wanted Cory Doctorow

mortarboards Improv Everywhere: asking random New Yorkers to give a commencement speech Cory Doctorow