Here are some great mentor text resources (the first link is a Wiki where you can share your suggestions):
http://primarymentortexts.wikispaces.com/Mentor+Texts+for+Reading
http://www.mauryk12.org/Literacy/reading%20mentor%20texts.htm
http://primarymentortexts.wikispaces.com/Mentor+Texts+for+Reading
http://www.mauryk12.org/Literacy/reading%20mentor%20texts.htm