Full size SD card adapter mount for the Ender 3. I saw other designs on Thingiverse, but the ones that attached to the LCD using the existing LCD hex bolts only used one screw, and didn't look as good as they could be aesthetically, in my opinion.
This design differs from the rest by including the iconic Ender 3 Dragon and Text to the faceplate and covers the entire front of the LCD frame horizontally.
I have included an image of the SD card adapter that I am talking about, for reference.
PS: If you like this design and would like to support my efforts, please consider sending a cup of coffee via the "Tip designer" button. Your support is most appreciated. I have a lot of other models in the pipeline, so stay tuned for more!
Supports are optional (for the SD card slot). If you don't use them, you may get a tiny bit of sag on the SD card slot top wall. It's minor.
If you choose to use supports, I recommend setting the support distance (z) to 0.2 > 0.3mm. They're very easy to grab with the Ender 3 snips and just yank out as one piece that way.
Use the Cura (or your slicers) support blocker to block supports for everywhere but the SD card slot.
I recommend printing in the orientation displayed in the Slic3r screenshot, for the most detail on the Ender dragon and text.