For the last 6 or 7 years, every summer I see an older gold Lamborghini (at the local car shows) that has a very flat front bumper.
The guy made a color photo copy of his plate on glossy print paper and just stuck in on the bumper with adhesive. He may have laminated it with clear plastic, but it's held up pretty well until this year, it's finally starting to show some wear.
I'm not sure, (since I never actually measured it) but he may have "slightly" down sized it a smidge when he copied it as well.
Personally, I hate front license plates in general, and especially on the Crossfire. Unfortunately I live in a State that requires them. I've been very lucky for the last 10 summers running just one plate, but I know it's only a matter of time before I get nailed. (Even though I know of 2 Corvettes and one SUV that are "LEO" owned vehicles with no front plates).