Each patrol has a topic to prepare an educational sketch on and they then present it to the troop.
Tents, stoves, pioneering poles etc...
Come up with a set of topics (that you have equipment for) and let each patrol choose a topic. Give them 15-30 minutes to prepare a sketch/etc and then gather the troop together and let each patrol perform their sketch to "educate" the troop.
Suggested topics (feel free to edit):
* Putting up/taking down tents
* Setting up, lighting, and dismantling lamps/stoves/fridges
* Knife, axe & saw use
* First aid
* Putting up dining shelters/event shelters etc
* Many of the "Skills Challenge Badge" requirements