The Smithsonian Museum has 3D scanned many of their artifacts, including Neil Armstrong's space suit from Apollo 11.
Their version is a hollow model with a complete interior surface, but that would double the plastic use and time. I've removed the interior surface (thanks, Meshlab!) and added supports to help with the fingertips (thanks, Meshmixer!). Prints well, but be sure to use thin layers to optimize all those tiny overhangs caused by folds in the legs.