Symbolic actions add to your wedding ceremony an outward message communicating a deeper significance, often related to the cultural background of the couple. Jewish Weddings, for instance, include the crushing of a glass-—an action full of traditional meaning. Very often couples choose to include within their ceremony a symbolic action significant to them, like the use of sand or water because of the special significance of sea and beach in the lives of their families or themselves. Some of these actions are:
The Unity, or Wedding, Candle Ceremony; Sand Ceremony; Hand Ceremony; Community, or Family, Support Ceremony; and Hand Fasting Ceremony.
These ceremonies are described in the links below:
The Last Kiss Before the First Kiss
And, of course, you can find many other traditions through a web search. If there is some other favorite ritual you'd like to include, please let me know.