It would be awesome to be able to make used LoN Mounts and Illusions Unattunable so they can be traded or given to other characters. Yes, I know they aren't Attunable now, but if you could make them tradable for DB Cash or through Quests that would be sweet I can't be the only one with older toons with nice items that I lost interest in playing that class (Nerfed). Let the comments begin.
This would be cool but I fear something on the line of Lynea the pet collector in the Commonlands would happen. Where you have to trade in 10 prize pets and take a chance on what you get in return which is usually one of the ones you already traded in. Adoption coins: You can buy a random discontinued pet from her using this currency. For selling her 10 adoptable pets, you get enough Adoption Coins to purchase one Random Pet in a Box. Adoptable pets released so far include cats, large felines, dogs, and birds. Cat in a Bag, Big Cat in a Bag, Dog in a Crate, and Bird in a Cage may be purchased in the Marketplace. Using the item will give you one of several different types, each at random.