I finally finished my first version of a Christmas tree with a lithophane bauble. The original design is from “3d print bunny art” in the “Creality Official User Group” on Facebook. I redesigned it to add the LEDs inside and hide the LED controller inside the stand.
This is not perfect yet. There are still some improvements I would like to do to make it easier to assemble. Holding down the LEDs inside was a bit of a struggle, mostly within the star on the top.