Mud flaps work, but so does the 3M vinyl adhesive! Moulds to the fender perfectly and is simple to remove with no damage. We changed them once a year at the most. No damage to paint at all. In fact I put it on the rear crown line behind the seats too. Kept any damage from someone throwing off their seat belt to carelessly!
BUT wait to see what that stuff costs a roll--- a real EEEK!
DV