Hamsa - the design commonly has an eye in the center of the hand or various Hebrew letters in the middle. In Arab cultures often refer to it as the Hand of Fatima, which represents the Hand of God. In all faiths it is a protective sign. It brings its owner happiness, luck, health, and good fortune. The hamsa hand has a wide variety of different spellings which includes hamesh, hamsa, chamsa, and khamsa.
Chai - commonly seen on necklaces and other jewelry and ornaments, is simply the Hebrew word Chai (living), with the two Hebrew letters Cheit and Yod attached to each other. Some say it refers to the Living God; others say it simply reflects Judaism's focus on the importance of life.
Menorah - One of the oldest symbols of the Jewish faith is the menorah, a seven-branched candelabrum used in the Temple. The kohanim lit the menorah in the Sanctuary every evening and cleaned it out every morning, replacing the wicks and putting fresh olive oil into the cups.
Star of David - Represents the High Holy Days. Often an accompaniment of the Menorah. The Star of David a symbol of Judaism, as a religion, and of the Jewish people as a whole. And it also thought to be the shield (or at least the emblem on it) of King David.