Hello!
My suggestion is the ability to ‘recraft’ crafted items.
Eg, I could make 200 odd pieces of simple apparel, like eyebrow pieces or nose rings etc, but I have no need for that many, and I doubt that they would sell much in the long run, and while it is true I could sell them from the inventory, I think the ability to re-craft would be much better, especially as an option!
I don't think you should get the full amount of the item's ingredients back. Maybe you could get x number of ore per bar that was originally used, or a chance percentage of getting the full item, as well as a handful of XP points?
Cheers!