unique crafting parts

me and a friend were discussing how we think crafting should be implemented into mineCRAFT Dungeons, seeing it is a big party of mine craft why not take a roll in this spin off, now im not saying it has to be a big thing or a crucial mechanic, but i pitch that you should be able to find parts for certain uniques and put them together to make the one you are after. for example the fighters bindings, first part , (Mind these are all specific drops from certain mobs) so the first part would be the two yellow stones, or gems as my friend calls them, you could find them from redstone golems, like a 1/25 chance to drop, now for the leather bit, this can be acquired from cows, and/or mooshrooms/mooshroom golem, now for the metal band at the knuckle, these could be acquired from armored enemies, as it could be a broken piece of their helmets. now how do you assemble said unique? if you were to ad a new npc you could use a crafting table, or to make it easier for the devs, just in your inventory.