No more damaging you facade! This door stopper will prevent any harm to your wall.
This thing comes in two pieces. You have to attach the solid one to your wall using a standard 6mm coarse thread screw. Print the second part with flexible filament (40% infill, see below) and hook it up to the solid part.
No supports are needed.
I've printed the solid part with 100% infill and a resolution of 100 microns.
After a few try'n'errors I came up with 40% (hexagonal pattern) for the flexible stopper. This infill percentage results in a nice soft door-stopping-effect. Use whatever resoltution works best for you for the stopper. I've used a rather high resolution of 180 microns. This was due to the slow printing speed needed for flexible filament.