Placing keys on a table is considered unlucky. (Sweden)
3
Once a wedding ring has been placed on the finger, it is considered bad luck to remove it.
117
In some parts of England, rum is used to wash a baby's head for good luck.
71
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
Two people breaking a wishbone is said to lead to good luck for the person with the larger piece.
225
According to an age old custom, carrying a dead shrew in your pocket wards off rheumatism!
24
An acorn should be carried to bring luck and ensure a long life.
115
If one walks underneath an open ladder it is said to bring bad luck. Sometimes it is said that this can be undone by immediately walking backwards back underneath the ladder.
105