The Byzantine Seminary Press (see link on this Home page) has a leaflet (#56 under Miscellaneous - pamphlets). They are 25 cents each. They also have the book "Ritual of Marriage with Divine Liturgy - people" for $1 each. Those are what I used for my wedding. They have a small blurb throughout for the symbolism (crowning, etc.)
Pretty much ... if people are interested, they'll read it. If not, they'll just watch with interest.
You used to be able to get them imprinted with the coupels' names (for an extra charge), but I don't know if they still do that or not.