I designed a 19 inch rackmount for my PiHole with the opportunity to use an 1.3 inch I2C-Screen.
You need to print it with supports.
If you want a screen and use it with PiHole, Id recommend using my script and instructions to get it to work:
https://github.com/freddy2312/SH1106-PiHole-Statistics
Youll need 8 M2 Screws for the Pi and the screen and 3 m4x10 screws + nut for clamping together the 2 parts.
I used this screen:
Edit: A Reddit user suggested, that I should add another Iteration with a SSD-space, so: here you go :)
The author marked this model as their own original creation.