Used OpenSCAD to take the idea and generate a customisable doorstop maker.
Choose your dimensions, text and some options for fit.

In the font chooser you can try serif and sans(or blank) for minimal choices.

The Word_adjust parameter is to ensure both sides of the text hit the edges. Some fonts don't behave the same as others. So check before printing.

The tilt parameter wil lean the text over so it is clearer at an angle. But you can leave it unchanged and its clearer when looking straight down.