This good luck saying dates back to Victorian times and many brides try to arrange their wedding attire accordingly.

Something Old represents the link with the bride’s family
and the past. Many brides choose to wear a piece of
antique family jewelry or a mother’s or grandmother’s
wedding gown.

Something New represents good fortune and success
in the bride’s new life. The wedding gown is often
chosen as the new item.

Something Borrowed is to remind the bride that friends
and family will be there for her when help is needed.
The borrowed object might be something such as a
lace handkerchief.

Something Blue is the symbol of faithfulness and loyalty.
Often the blue item is the garter.

A Silver Sixpence in her Shoe is to wish the bride wealth.