I was given the task of honoring the Ancestors and the Earth Mother last minute for Lughnasadh 2008.
Ancestors:
Ancestors, you paved the path that we follow. May we honor yoru teachings in a good way, and remember our roots in everything that we do.
Earth Mother:
Earth Mother, may we remember to nourish you as you have nourished us. (it was storming bad this day).
They are short and sweet.