What are some easy mounts to get? I've been using the same gryphon since hitting 60 lol
Ground
-Slap on a Faction Tabard (like Org, Darkspear, Silvermoon, etc.) and get all those mounts once you hit Exalted with 'em.
-Armani Battle Bear - Get like 2-5 people and do the Zul'Aman Timed Run everyday until everyone has one. Should be easy at 90.
-Guild Mount (Scorpion/Lion): If you've got a Lv25 Guild, hit Exalted with your Guild and buy it. (Though it's like 1350 gold, but hey, it looks cool!) Hitting Exalted with the Guild is pretty easy nowadays.
-Brown War Bear: Buy in Dal. Like 750 gold?
-Grey/Blonde Yaks: Buy in Kun-Lai for 3k.
Flying
Bronze Drake - Guaranteed Drop if you can beat Heroic Culling of Stratholme.
Rusted/Ironbound Proto-Drakes - Do the Ulduar Metas; they're not terribly hard and there's usually groups doing them. (With a full 90 group and no screw-ups, it takes about an hour give or take.)
Dark Phoenix - Buy for 3k Gold. But your Guild has to have Guild Glory of the Cataclysm Raider, which is very easy nowadays (since they just have to complete the three T11 Raid Dungeons while in a Guild group).
Black/Twilight Drake - Complete Obsidian Sanctum (10/25) without killing the minibosses. OS10 shouldn't be too bad to solo, but you'll probably need some help with 25. Guaranteed drop off the boss if you don't kill the 3 minibosses.
Red Drake - Get Exalted with Wyrmrest Accord and buy for like 2000g. (Use Tabard or use Rep Tokens.)