This is a simple and minimally intrusive wall mount for The Lego Shuttle Discovery. It uses the two built in stand holes on the bottom as well as the two small gaps on the sides of the aft control surface (while in the wheels stowed position). I recommend printing in black since the rear control surface is black - it's really clean and you cannot even tell the mount is there.
Unfortunately the center of gravity is too far away from the wall for just the mount alone to keep it from falling over but I used a very small velcro command strip at the nose which works great. It feels extremely secure and I have had it mounted for weeks now with no issue.
The mount was designed with #8 countersunk screws in mind. Only the top one is really needed.
Note that the .stl was exported in inches so scale up by 25.4 if your slicers is working in mm.