Placing keys on a table is considered unlucky. (Sweden)
3
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
There are numerous sailors' superstitions, such as: it is considered bad luck for a ship to set sail on a Friday, to bring anything blue aboard, to stick a knife into the deck, to leave a hatch cover upside-down, to say "pig", or to eat walnuts aboard.
70
In some parts of England, rum is used to wash a baby's head for good luck.
71
According to an age old custom, carrying a dead shrew in your pocket wards off rheumatism!
24
Opening an umbrella indoors is said to result in 21 days of bad luck. Some traditions hold that it is only bad luck if the umbrella is placed over the head of someone while indoors.
75
Two people breaking a wishbone is said to lead to good luck for the person with the larger piece.
225
Before traveling a person should, apparently, sit on their luggage. (Russian)
117