Fake CF sticker. Quite stupid since most of them use the 3m (or 3m copy) CF sticker, which can be easily distinguished as fake.

Eto, something worse. If anything's worse than a fake CF sticker, it's a fake colored CF sticker. Saw a white Sentra or something old 90's car with this yesterday, too, at Banawe. Quite stupid since the CF sticker on the front hood and boot lid doesn't really match the white of the car.