Placing a hat on the bed is, apparently, bad luck. (South Carolina)
9
An acorn should be carried to bring luck and ensure a long life.
115
The superstitious symbolism of a black cat crossing one's path is dependent upon culture: some cultures consider this a sign of impending bad luck, while some cultures consider this a sign of impending good luck.
75
In Asia, the digit 4 never appears in any Nokia handset model number, because 4 is considered unlucky in many parts of Southeast/East Asia.
78
Some motorcycle enthusiasts hang a biker's bell from a portion of their bike to protect themselves from evil road spirits.
64
When you speak of bad luck, it is said that one should always knock on wood. Also knocking when speaking of good luck apparently helps with having good luck. This is an old Celtic tradition related to belief of wood spirits.
208
Two people breaking a wishbone is said to lead to good luck for the person with the larger piece.
225
Once a wedding ring has been placed on the finger, it is considered bad luck to remove it.
117