Self-imposed markings

Hey, the original license plate just goes way too far with many cars, so I’d like to ask a question about the following scenario: I let one of the many license plates on the internet give me a light-wheel mark, which has the same letters and numbers as my current license plate. I put this on my bumper, but always carry the original license plate with me. I know it’s not legal, but how high would the penalty be if m There are no seals on the new license plate. And the coat of arms of the district can’t just be ordered like that. Thanks for any answers.