Anyone incorporating a particular family tradition at your weddings?
In Chinese weddings, we have a tea ceremony where we kneel in front of our parents and elders (grandparents, potentially uncles and aunts who are directly related to your parents) and serve them tea. The tea is usually a rooibos tea with dates (red is a good luck colour for the Chinese). The parents and elders will give gifts in exchange for the tea as a symbol of future prosperity. This ceremony symbolizes the joining together of the two families.
In ancient Chinese weddings, the couple wears a special Chinese outfit for their wedding. For the bride, it can be a qipao, a type of body-hugging dress of Manchu origin with a high-neck and a skirt slit partway up the side or a qungua, a two piece consisting of a red embroidered jacket and skirt. Nowadays, the bride will usually wear a modern white wedding dress but often they will still wear one of these outfits for the tea ceremony.
How about you? Could be something related to your culture or just something your family came up with that you're continuing. For example, I went to a wedding once where the two families operated restaurants and as part of the ceremony, the groom served the bride an appetizer from his family's restaurant (baklava) and the bride served him a piece from her family's restaurant (a samosa) as a symbol of unity.