Don't forget Josh - some schools allow a short field trip, they could come to your home and you could have the Ob. Hive outside (or in if it is impossible to move) and everyone could see it and real hives too. I've had classes from Lakehurst Elementary in my yard before, watching a full inspection, they really got into it. So, you might not even need the Ob. Hive if you can demonstrate with the outside colonies. Just a thought.
P.S. Get to work on that film, use your camera to follow BEE ACTIVITY in the Ob. Hive, then moderate what they are doing, it makes a bunch of sense when you see a waggle dance or foragers carrying back pollen. etc..