I am currently working on a Heart shaped plate in ceramics for Mother Day. It can be used as a plate for a coffee cup or as a coaster. I have also decided to write something hidden on the bottom of the plate. It has been very difficult to obtain letters with at least 3mm thickness and that would be still readable. Here is the best I have done so far: Do you think it will be OK to be read? There should be no glaze at the bottom, so the precisions of the actual object should be the one of the 3D model there.