This papercraft is an Iron Man Mark V (Mark 5) Football Bust, created by Rafa Cunha. The Mark V (Mark 5), also known by it's names as the "Football" and Suitcase Armor, is an Emergency Suit, and was the fifth Iron Man Armor designed and created by Tony Stark. It is the first armor to feature a new portable system that can fold itself into a briefcase and be deployed for use in civilian areas.
It was built sometime between the events of Stark's Revelation as Iron Man and the Opening of the Stark Expo. The armor was featured in Iron Man 2, during Stark's battle against Ivan Vanko at the Grand Monaco Racing Track.
The suit was built as a base for experimenting on newer and better transport features for Tony's suits, so as he would be able to don them faster than before. It specializes in smoother transport, and it is collapsed into a suitcase and can be deployed anywhere, allowing Tony access to the suit especially in a civilian environment.
You can download the papercraft model here: Iron Man Mark V (Mark 5) Football Bust Free Papercraft Download