Can the boss drop the vanity itself and not the recipes?

Cus the item itself is considerably extinct lol, most of these old mythic weapons like Pavise, Razorbacks, etc have already been turned into vanities, people who have the weapon version are either using it for pvp, or they're banned. What are we supposed to do with the recipes we loot if we don't even have the item itself to craft into a vanity. Unless the recipe doesn't need the weapon itself?

Also, I know a considerable amount of people in-game are waiting for lvl 31 Mythics to be turned into vanities. Such as Entangled Bow, (idk the other weps for warrior and mage lol).

<3