Inventory item to speed up production of firebrand?
https://www.youtube.com/watch?v=ZEl-Y1NvBVI
Mini One time use Mud patches that act as a Quick but small production of Charcoal?
https://www.youtube.com/watch?v=GzLvqCTvOQY
Redirecting water, supplies etc from local rivers and or waterbeds?
https://www.youtube.com/watch?v=yFRDkhTguE4
Stone Tablets? a way to store literature into a cheap object which can be held in inventory and wiped via rubbing a stone onto it?
(could also make it so it only has a certain amount of uses before it degrades into stone fragments?)