Do you know anything about the "Ghost Army" ? During the world war II a creative unit were involved to fool the Nazi army. The Allied armies recruited a professional team of artists and other creative people. This team's main purpose is to fool the German Nazi armies. The team developed a large number of inflatable tanks & airplanes made of rubbers, papers, plastics & woods. And Germans were scared so much to view the large rows of tanks & airplanes. This creative team was was known as the Ghost Army.
Jack Masey, who was recruited at the age of 18, recalls his time in the Ghost Army:
We were told we were going to be using inflatable equipment to try and fool the Germans into thinking that we were a real army, when we were in effect, I suppose, a rubber army.
reference : http://todayilearned.co.uk/2013/08/14/the-allies-fooled-the-germans-by-using-inflatable-tanks-and-rubber-airplanes-at-ww2/