Here is a copy of our Rotation SS sign up board for the whole year.  We have our big recruitment of teachers on Rally Day and then this board stays up in our fellowship hall for the Sunday School year and people can continue to sign up. I get the first rotation story filled before Rally Day-so the board isn't blank.  I do this by calling or emailing people who I know who will teach.  I also PRAY about recruitment of teachers and try to let the Lord handle the sign up board!  As the SS year progresses, when there are blank Sundays, I ask people to teach (in person) and that usually works.  Thanks for additional ideas about recruitment on this forum!  We are starting our 10th year of Rotation SS at First Pres Jackson, TN!!