So I have been to a few weddings and only seen this done at my FH's cousin's wedding. The DJ announced for all married couples to join the Bride and Groom on the dance floor and throughout the song he would ask couples to stay if they have been married for X amount of years. Example- Couples who have been married for 5 years. So those that have not been married for five years would leave until you get down to the last couple standing that have been married the longest.
I thought it was a really cute idea and they got a bottle of champagne to share. Has anyone done this? Thought of doing this? What are your ideas on this?