My informant described to me on of the good luck charms, (perhaps superstitious), that her sister used when she was younger. She would keep an actual horseshoe by her bed and hang it so that the horseshoe was like the letter U on the wall. It was hung this way to make sure that luck did not literally pour out. For whatever reason, my informant’s sister hung it up to keep the luck in, whereas in some cultures the horse shoe is hung upside down so that luck pours down on a person.
I asked my informant if she knew the history about the horseshoe, why it was used, and what region the horseshoe as a good luck charm originated. She was not certain, but she thought maybe it was from their Irish heritage.
Upon further research I found that horseshoe, made out of iron, was originally used to ward off faeries as part of Celtic tradition. Since then the tradition as been adopted as a good luck charm and the symbolism of the iron in the horseshoe is no longer an essential part to the good luck charm.
It should be noted that my informant told me her sister was superstitious and that she used multiple luck charms from multiple regions, though most of them were European. The informant’s mother even had an elephant pointed at the front door, which was said to bring good luck. I speculate that this might be an American adoption of multiple customs and luck charms.