Lucky charms are items within cultures that are believed to bring luck and may refer to:

Lucky Charms in Western Culture[edit]
Four-leaf clover,
Rabbit's foot, carried as an amulet believed to bring good luck
Horseshoe, a U-shaped item made of metal or of modern synthetic materials, nailed or glued to the hooves of horses and some other draught animals
Charm bracelet, an item of jewelry worn around the wrist. It carries personal "charms": decorative pendants or trinkets which signify important things in the wearer's life
Wishbone, a forked bone found in birds and thecodonts, formed by the fusion of the two clavicles. In birds, its function is the strengthening of the thoracic skeleton to withstand the rigors of flight
Male Tortoiseshell Cat, describes a cat with a coat that is mottled, with patches of orange or cream and chocolate, black or blue.
Maneki Neko, a plastic cat usually in the color of gold, white and black derived from Japan who waves it's left arm which brings good luck.
Lucky Charms in Other Cultures[edit]
Ashtamangala, a sacred suite of Eight Auspicious Signs endemic to a number of Dharmic Traditions such as Hinduism, Jainism, Buddhism, and Sikhism
This information is taken from Wikipedia -
http://en.wikipedia.org/wiki/Lucky_Charms