I don't know if this has ever been suggested in PLUG, but one thought might be to put together one or more canned presentations on Linux and/or FOSS and have a small group of presenters that can put the show on at area schools. Ideally, we could have someone familiar with the school systems to be a contact to arrange the schedules. The presentations should have a focus suitable for a school audience.
If this program did well, we might then consider other target audiences and how to adapt the presentations for those audiences.