Here are two Iron Man armor paper models, Mark XXII Hot Rod (Mark 22) and Mark XXXIX Gemini (Mark 39), the papercrafts were created by MTK. The Mark XXII Hot Rod (Mark 22) is a suit built for speed and agility, and featuring the latest truster design and armor plating with the same protection as War Machine but with 1/3 the weight.
The Mark 39 (XXXIX), also known by it's name as the "Gemini", is a Sub-Orbital suit and was one of the many newly built suits created by Tony Stark, sometime after the events of The Avengers.
It was featured in the movie Iron Man 3, and makes it's debut in the movie when Tony ordered J.A.R.V.I.S. to initiate the "House Party Protocol" in which it was activated along with all the other suits to aid him in his fight against Aldrich Killian.
The suit earned it's name the "Gemini", for having the ability to travel into sub-orbital ranges and for venturing into space temporarily, as it is derived from it's name. It was built with an armor that could stand the cold temperature and radiation in space and was built in with an oxygen tank to allow Tony to be able to breathe while he was in space.
Tony's motive for creating this suit can be seen at the end of The Avengers. As Tony goes through the portal with the atomic bomb that would otherwise destroy Manhattan, his suit powers off, and Stark falls through the portal and is saved by The Hulk. [Source: wikia]
You can download the papercraft models here: Iron Man - Gemenii and Hot Rod Free Paper Models Download