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A horse shoe often symbolizes luck, good luck, or a lucky charm.
The Lucky Horseshoe was created in 1925.
Some examples of lucky objects include a horseshoe, a four-leaf clover, a rabbit's foot, a lucky penny, and a lucky charm bracelet. People believe these items can bring good fortune and positive energy.
Most likely it is just a horseshoe charm dangling from a necklace? Like these- http://www.charmfactory.com/SearchResult.aspx?KeyWords=horseshoe%20charm&All=True
A Lucky Horseshoe - 1908 was released on: USA: January 1908
The Lucky Horseshoe - 1911 was released on: USA: 11 September 1911
Mulan's lucky charm was Cri-kee
The duration of My Lucky Charm is 2700.0 seconds.
My Lucky Charm ended on 2005-02-11.
My Lucky Charm was created on 2005-01-03.
The cast of The Lucky Horseshoe - 1911 includes: Fred Mace Ford Sterling
Jack's Lucky Horseshoe - 1911 was released on: USA: 3 March 1911