About this 3D model
I recommend printing the model with layer 0.2. I personally printed it from PLA. The main body and roof need supports. Either an LED candle or an LED strip can be placed inside. The bottom with a protruding cylinder is adapted to the ice strip. If you are going to print transparent filling, you should print in vase mode and use the brim min. 10 mm. If you are going to print "lithophane" filling, the dimensions of the filling model must be observed. I made lithophane with the help of this site, where the lithophane model can be set. https://lithophanemaker.com/Framed%20Lithophane.html Please excuse the print quality. It was still printed on Anet A2 a few years ago.