Weddingbee boards

I certainly hope that someone here can help.  I have a 9 year old daughter and am getting married in a few weeks.  My FI and I decided to have a family unity ceremony after our vows to signify that we are becoming a family as well as a couple.  I would like to have my daugher do a reading that talks about family.  My thoughts were that it would be a poem or e xcerpt from a book that explains how important family is or how families are made in different ways - something like that.  I have found nothing so far that is short, on topic and appropriate for a 9 year old.  I thought about having her write a letter to us or a letter about family.  She is fine doing the reading but doesn't want to write anything.  Does anyone have any ideas?