I built Adafruit's Pi Hole ad blocker (https://learn.adafruit.com/pi-hole-ad-blocker-with-pi-zero-w/overview-adafruit2), but modified to use a 1.3" standalone OLED (https://www.adafruit.com/product/938) instead of the listed display. I wanted to include the display in an interesting case so remixed the original case to add an internal mount for the OLED, and a support base since the display bit protrudes. The OLED fits onto the mounting pegs inside the frame, and the Pi Zero slides into the original sleeve.

The lid, NeoPixel bracket, etc from the original design should still fit - grab them from https://www.thingiverse.com/thing:2491790

Pi headers are positioned for easy wire routing to the display.

Modeled in Tinkercad. Sliced in Simplify3d.