It is bad luck to put new shoes on a bed (or a table) (comes from the tradition of dressing a corpse in new clothes and shoes and laying them out so everyone can give their respects) - (UK)
57
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
Once a wedding ring has been placed on the finger, it is considered bad luck to remove it.
117
Pirates believed that piercing the ears with such precious metals as silver and gold improved one's eyesight.
131
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
An acorn should be carried to bring luck and ensure a long life.
115
Two people breaking a wishbone is said to lead to good luck for the person with the larger piece.
225
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