Saturday's Retreat

Does anybody have a devotional teaching/preaching lesson they might want to "lead" the adults in after lunch? (It could be a workshop on marriage, prayer, fruits of the spirit, the beattitudes......) I'm going to lead the singing with 4-5 songs with the families. Afterwards, Julie K. and AJ Rice are going to do activities with the kids. The adults will need to engage in 40-50 minutes of something worshipful in order to fulfill the request of the retreat owners. I have some excellent sermons on my ipod that, if we are really desperate, we could listen through a "boom box". Anyone with an idea?.....anyone?.....Bueller?

Thanks,

Allen