Find Unitarian Universalist stories in A Lamp in Every Corner: Our Unitarian Universalist Storybook by Janeen K. Grohsmeyer (Boston: Unitarian Universalist Association, 2004) and Stories in Faith: Exploring Our Unitarian Universalist Principles and Sources Through Wisdom Tales by Gail Forsyth-Vail (Boston: Unitarian Universalist Association, 2007). Another book with a variety of stories and guidance on using storytelling is Once Upon a Time: Storytelling to Teach Character and Prevent Bullying by Elisa Pearmain (Greensboro, NC: Character Development Group, 2006).
Raising Resilient Children by Robert Coles and Sam Goldstein (Chicago: Contemporary Books, 2001) gives guidance on developing social conscience in children.
These books, available from the Unitarian Universalist Association online bookstore, offer information, reflection, and guidance that may help leaders prepare to teach Love Will Guide Us: Nurturing Children and Youth: A Developmental Guidebook by Tracey Hurd (Boston: Unitarian Universalist Association, 2007); The Gift of Faith: Tending the Spiritual Lives of Children, Second Edition by Jeanne Harrison Nieuwejaar (Boston: Skinner House Books, 2003). Welcoming Children with Special Needs: A Guidebook for Faith Communities by Sally Patton (Boston: Skinner House Books, 2004) is available as a PDF on the UUA website.