One of the common themes of the request for new rewards throughout all aspects of the game seem to be that items lose their value over time as more of each of the items get added to the game. This is less so with consumable items (ie. potions) as they get used up and hence a demand is (generally) always there for them.
So I was thinking we could add a new type of equippable item that is essentially only usable for a certain amount of time. By that I mean that once the item has been equipped, a timer is added to it and when that runs out the item is destroyed. The item could still be unequipped and traded once the timer is activated but it would show how long the item had remaining on the item details. This would keep a demand for the items as they would essential be consumed after the timer runs out.
Thoughts?