If you don't have singles or very few You can do a toss to the married women. And if you want to see them actually dive for it. Have the DJ announce there is money in it, as you are putting money in the flowers.
Another idea for your bouquet is to have an Anniversary Dance. Give the bouquet to the couple that has been married the longest. And get a word of advise on how to make yours last like theirs did and still is.