I created this outline from Hogwarts and used it to cut through the iPhone XS Max case found here: https://www.thingiverse.com/thing:3122631

Then I created the simple crescent moon in tinkerCAD. I pulled the image of the stars from the corner of a page in the Harry Potter books and made them an STL in Fusion 360 and used tinkerCAD to cut out the outline, stars, and moon.

It's best to print this in TPU filament so the case is flexible and can move with the phone and withstand a bit of shock.

I've tried to print this 4 times and the filament spills out the side of my extruder so I'll need to tweak my settings before I can get this printed. I believe it is the filament I am using so give this a print and post your make!

I've included the picture of how it would look as I was able to complete the first layer on the first attempt.

Thank you JManDoo for the model. Found here: https://www.thingiverse.com/thing:3122631
I was unable to upload this as a remix.

For whatever reason my picture won't import in the correct orientation. Sorry about that! :(