Stones that have been attuned to the extreme temperatures of deserts or icy wastes. Such stones are quite valuable to adventurers as they can use them in order to preserve or prepare meals, make extreme environments bearable, and use them in clever devices.
Nuclear war, zombie outbreaks, meteor strikes, economic collapse, alien invasion, no matter how it happens an apocalypse makes for a unique and engaging setting to run a campaign in, even for a jaded GM.
Here’s a few quick tips that can make a good zombie or other post apocalypse game a great one, and keep the group coming back (from the dead?) for more.
The old hermit living outside the village is rumoured to have a small rusty tin spoon that seems disturbingly ordinary but in reality is a magic spoon. If someone puts the spoon in their mouth will taste food. It can be any type of food, grilled meats, cheese, strawberry, bread and so on. The real bonus is that the food is real and with enough tastings can fill a hungry belly.