If you are doing the Beasts of Fable Account Quests Daily, Do the quest on your level 90 character then let an Alt turn it in. The alt doesn't even have to be on the same server. The Alt gets a nice boost in XP, and your pets still reap the benefits of any Battle-Stones you receive. If you receive a pet you want to sell on a certain Character, you just add it to your journal and let that character place it in a cage to sell. Hope this helps all you altaholics out there like me!