Perhaps kits made by each profession, or generalized for deconstructing items that are made in excess or no longer wanted to half the material provided back.
Primarily this would be for fixtures - perhaps as a kit made by Carpenters and Artists, while weapons and armor would have kits made by Blacksmiths
Chairs made of two pieces of wood, yielding back one for example in order to somewhat incentivize recycling items rather than feeling the need to trash them, hide them in nooks or shove them into barrels.
A blade made of dragon oil, 2 adamantine, and a mithral dust for another example, perhaps just gives back one adamantine bar and a percent change for one of the other materials?