I just saw this linked from Wired- a set of instructions to build a small stand to allow a smartphone to be used as a microscope (and able to take pictures and video). It's not quite aerospace education, but definitely worth a look for some AE officers in CAP wanting to keep up with some new STEM topics for the cadets:
http://www.instructables.com/id/10-Smartphone-to-digital-microscope-conversion/ (http://www.instructables.com/id/10-Smartphone-to-digital-microscope-conversion/)
Thanks! This will keep my 4 year old busy for weeks....