The Haunebu (aka H-GERÄT, Hauneburg Device, aka Nazi UFO) is a flying saucer-shaped vehicle said to be an advanced aircraft/spacecraft developed by Nazi Germany during World War II, mainly for military purposes.
It would have been really awesome if this thing was real, but remember, references to Nazi UFOs appear mostly in fiction and conspiracy theory sources - your call.
Nazi UFO - Haunebu IV Papercraft
Roswell UFO Papercraft [Related Posts]
Eve Online Papercraft
Discovery One Papercraft
SpaceShipOne Papercraft
Space Battleship Yamato Papercraft