This is the perfect solution for renters for hanging pictures, clocks, and other items on their walls without damaging the drywall.
 

Simply print out the model and attach it to the wall with a 3M command strip. The model is perfectly sized to fit command strips, I reccomend using it long side parallel to the floor as this will minimize the forces on it.
 

I used PLA filament with a 0.08mm layer height for max layer adhesion. You can also print it in silent mode to allow even more part cooling and even better adhesion. I couldn't break it with my hands so the command strip's adhesive is the limiter not the part.