Many people buy charms and talismans because they think they will bring them luck.

Amulets : an ornament or small piece of jewellery thought to give protection against evil, danger, or disease.
Tokens : a thing serving as a visible or tangible representation of a fact, quality, feeling, etc.
Cards : a piece of thick, stiff paper or thin pasteboard, in particular one used for writing or printing on.
Stones : hard solid non-metallic mineral matter of which rock is made, especially as a building material.
Talismans : an object, typically an inscribed ring or stone, that is thought to have magic powers and to bring good luck.

Synonym of Talismans is Amulets