This is a remix I did some time ago taking the sleepy hollow silhouette by BlueBeefman and placing it in a shadowbox.
Easy no support print in PLA or material of your choice.
If you decide to scale it, remember that tolerance gaps scale too and you may find making the plate scale slightly larger to give you a good fit.
Note I posted a blank plate and the plate with the moon. Also the plate prints thin to increase light passthrough.
Thanks to BlueBeefman for the original post https://www.thingiverse.com/thing:4948795
The Silhouette shadowbox is a technique of 3dprintbunny at https://www.thingiverse.com/3dprintbunny/designs