lithophane was printed out of white pla with a brim also it is best to print these at 90deg on the print bed the part has less movement when it gets to the top layers as the bed moves back and forward a lot. i made the image on paint using th heart shape on there i then dropped the image straight into cura 3mm thick 120mm wide i made sure the outside of the heart was a light colour so it would print thin then i used snips to trim out the heart. the stand was from yellow pla and the candle was bought from amazon it is a battery powered tea light (so no fires) tea light and heart in the cad files are just to show the idea