Good variety here:

http://www.pensacolaphoto.com/weddinginfo/readings.htm

A cousin read the following at my son's wedding ten days ago:
from a Navajo Wedding Ceremony

"Now you have lit a fire and that fire should not go out. The two of you now have a fire that represents love, understanding and a philosophy of life. It will give you heat, food, warmth and happiness. The new fire represents a new beginning - a new life and a new family. The fire should keep burning; you should stay together. You have lit the fire for life, until old age separates you."

This followed the lighting of candles by the mothers and the couple.