-the furniture needed for the backwings quests
-all the backwings recolors
-in fact you should make most of the equitable items needed in alchemy formulas craftable. you're losing these items to alchemy without replenishing the supply steadily enough. example: kitty fluff plushie used in the north kitten star recipe. You can't get that item anywhere but the MP, and there's not enough of them.
And in durem depot where you exchange bugs for ink, you should be able to exchange butterflies for monarchs, dragonflies for demonflies, ect like you can exchange 1k large fish for rare fish.
I think it would be nice to make our own wands combining a certain type of lets say stick along with a gem some example would be hawthorn and rose quartz. You could use the 13 trees from the ancient Irish calenders and birthstones and create any combination out of these.