The easiest way to put your name on the sign is with the Prusa Slicer. Use the 3MF project file. You can also use the FreeCAD file attached. With FreeCAD just edit the string in the brackets of the “Edit_Your_Name” object and select your font. I used FreeSans.

The lettering I put on the plate with 1 mm and switched the color with a manual filament change the at the corresponding layer. But you can also imprint the name, and change the colors in between, and and and.....

It takes some force and feeling to snap the side stands into place. But they certainly won't fall out afterward.

I printed my the sign with PLA and a layer height of 0.2, but it probably also works with PETG.