Not all of the these links are based on Lutheran doctrines, but offer some good resources that you can modify.
Vibrant Faith Ministries Youth Specialities
ELCA Youth Ministry Network Does God Exist?
Youth Ministries of the ELCA The Source for Youth Ministry
Christian Skits, Dramas, Puppet Skits, Bible Lessons
Information about Seedfolks Youth Ministry Sampler Workshops
Nurturing Faith Through Life's Transitions
The Fuller Youth Institute
Lutherdale Outdoor Ministries