Could Be fun to take through a car wash. Come out the other side complaining their wash took off your paint.
Here would be my idea, Find the color closest to your cars color. Lay out some stripes on the car with tape and newspaper for over spray and get a sutle stripe job.
The Free stenciles are a nice touch
I could come up with a weekly car change with this. And if it does do something to your pannels over time, you could just have them changed or repainted properly.