I have always said the best defense against theft is to have a lousy car. Now I might want a nice car someday, but there must be a way to make it at least look bad…. Well here's a good example: stickers that make your car look rusted.

It would be simple enough to scrape away paint and let it rust for real or bang in the metal here and there, but real damage affects resale and could end up causing need of repairs. This solution is far more elegant.