Updated to V3. I added the pegs from my SNES Skadis mount that I designed from scratch that adds a third centered peg underneath the top 2 for extra support. It should feel much more secure.  https://twitter.com/Beardanidas/status/1620330234901073921

Updated to V2. I fixed up the model a bit and made it easier to print, should use a bit less material also. New photos to match the new v2 model.

Remix of the wall mount from https://www.thingiverse.com/thing:3158960 and V1/V2 use the Skadis pegs from https://www.thingiverse.com/thing:5243936 
 

Printed with 15% infill, 0.28mm layer height and with supports on an Ender 3.