There are all sorts of popular charms that are touted as a sign of good fortune.The most common that comes to mind is a four-leaf clover, an ancient Irish symbol of luck. Horseshoes are another well-known object said to unlock mystical mojo. According to legend, the devil would stay away from any home with a horseshoe placed over the door.A rainbow, rabbit’s foot, and even a penny found on the street are all said to lure blessings to the beholder.