I don't know how to include my 13 year old nieces. Their two bothers are going to walk my mom down the aisle, but I don't know what my nieces can do. I don't want them to be junior bridesmaids, we're not doing a reading, and the only thing I can think of is them greeting people and handing out bubbles. I want them to do something more where they can walk down the aisle as well. Any suggestions?