I bought a box (about 400) of popsicle sticks to use as taster sticks for the honey. Each stick gives a small dose of honey to an individual so it takes care of health issues. I then use the sticks for starter strips for foundationless frames.
I made a model of a skep using 3/8 inch sisal rope with removalable top (see craft section).
I take along a large poster of a year in beekeeping and 12 smaller posters about the workings inside the hive (Bushy Mountain).
I take a 5 frame nuc with solid bottom board, and frames in various stages of development.
Wearing the beesuit and have veil and tools (frame tool, smoker, etc) on display helps also.
Most schools won't allow live bees into the class room (legal issues) so I plan on making a clear plastic block with the various bees and stages of development imbedded in it for display also.
I can talk to any group from 5-99 from 15 minutes to 2 hours depending on attention span or time alloted.
I'm also getting a 4 medium frame OB hive for those times I can take bees into a lecture site and for my own continuing education.
Young kids like the idea of eating bee vomit, older tweens, teens, and adults not so much.