The first she ever got, a Buddhist Wheel of Life on her left wrist:
Along her ribs on the right side of her body: (The Hamsa, particularly the open right hand, is a sign of protection that also represents blessings, power, and strength, and is seen as potent in deflecting the evil eye.)
Centered on her sternum, just below her breasts, only about 3 inches across: (In Hinduism, the lotus primarily represents beauty and non-attachment.)
On her left thigh: (Ganesha is widely revered as the remover of obstacles, the patron of arts and sciences and the deva of intellect and wisdom. As the god of beginnings, he is honored at the start of rituals and ceremonies. Ganesha is also invoked as patron of letters and learning during writing sessions.)
On the back of her neck, usually hidden by her hair: (The crossroads is a key symbol in Voodoo, representing the place where the physical world and the spirit world intersect, and also the place where good and evil intersect.)
[Added June 13, 2014:]
On the round and front of her left shoulder: (Mandala is a spiritual and ritual symbol in Hinduism and Buddhism, representing the Universe. In various spiritual traditions, mandalas may be employed for focusing attention of aspirants and adepts, as a spiritual teaching tool, for establishing a sacred space, and as an aid to meditation and trance induction.)