A giant Post-it note art war has began in Lower Manhattan, NYC, as a number of advertising agencies and businesses have began to communicate with each other from their tower block offices with giant artwork- made up of colourful Post-it notes.

With companies such as Getty Images, Havas Worldwide, Harrison and Star, Cake Group and Biolumina taking part, each business has made some impressive window displays. From spiderman to giant burgers, each office has created their own 'design' which can be seen from the buildings opposite or the streets below. Messages such as 'Will you marry me?' have also been sighted. IBTimesUK takes a look some at the most original post-it note designs made by employees in New York City:

Post It Notes, NYC
An image of the Superman Logo created with Post-it notes is seen in the windows at 200 Hudson Street in Lower ManhattanMike Segar/ Reuters
Post It Notes, NYC
A message created with Post-it notes appears in the windows of 200 Hudson street in Lower ManhattanMike Segar/ Reuters
Post It Notes, NYC
Images created with Post-it notes are seen in the windows of 200 Hudson Street in Lower Manhattan, New YorkMike Segar/ Reuters
Post It Notes, NYC
An employee creates an image on a window with Post-it notes at Horizon Media's offices at 75 Varick Street in Lower Manhattan, New YorkMike Segar/ Reuters
Post It Notes, NYC
An image of the Snapchat logo, created with Post-it notes, is seen in the windows of Havas Worldwide at 200 Hudson Street in Lower Manhattan, New YorkMike Segar/ Reuters

Post It War, NYC
An image of Spider Man created with Post-it notes is seen in the windows at 200 Hudson Street in Lower Manhattan, New YorkMike Segar/ Reuters
Post It Notes, NYC
Images created with Post-it notes are seen in the windows of offices at 75 Varick Street in Lower ManhattanMike Segar/ Reuters
Post It Notes, NYC
An employee creates a rainbow image on a window with Post-it notes at Horizon Media's offices at 75 Varick Street in Lower ManhattanMike Segar/ Reuters
Post It Notes, NYC
Images created with Post-it notes are seen in the windows of offices at 75 Varick Street in Lower ManhattanMike Segar/ Reuters
Post It Notes, NYC
An image of the sun created with Post-it notes is seen in windows at 200 Hudson Street in Lower Manhattan, New YorkMike Segar/ Reuters
Post It Notes, NYC
Images created with Post-it notes are seen in the windows of offices at 75 Varick Street in Lower ManhattanMike Segar/ Reuters
Post It Notes, NYC
An image created with Post-it notes is seen in windows at 75 Varick Street in Lower ManhattanMike Segar/ Reuters
Post It Notes, NYC
Employees create a US flag image with Post-it notes on a window at Horizon Media's offices at 75 Varick Street in Lower ManhattanMike Segar/ Reuters
Post It Notes, NYC
Images created with Post-it notes are seen in windows from Havas Worldwide Media's offices at 200 Hudson Street in Lower ManhattanMike Segar/ Reuters
Post It Notes, NYC
Images created with Post-it notes are seen in the windows of 200 Hudson Street in Lower Manhattan, New YorkMike Segar/ Reuters
Post It Notes, NYC
Employees create an image with Post-it notes on a window at Horizon Media's offices at 75 Varick Street in Lower Manhattan, New YorkMike Segar/ Reuters
Post It Notes, NYC
Part of an image crated with Post it notes is seen in a window at the offices of Havas Worldwide in Lower Manhattan, New YorkMike Segar/ Reuters
Post It Notes, NYC
Images of Angry Birds created with Post-it notes are seen on a window at the Horizon Media offices at 75 Varick Street in Lower Manhattan, New YorkMike Segar/ Reuters
Post It Notes, NYC
An employee creates an image on a window with Post-it notes at Horizon Media's offices at 75 Varick Street in Lower Manhattan, New YorkMike Segar/ Reuters
Post It Notes, NYC
An image of a hamburger created with Post-it notes is seen in windows at 75 Varick Street in Lower Manhattan, New YorkMike Segar/ Reuters