I searched and didn't find a thread for this, so I'll share it with you guys.
I was leaving a BF group and asked for a new MotW from the druid, and got full rebuffs all-around on both me and my felguard. I then mounted up, and then dropped party, and to my surprise my pet's buffs were all there, including the 30 minute paladin blessings when I dismounted.
So basically, you can have 30 minute pally buffs put onto your permanent pets, you mount up, and then leave the group. When you dismount again, they're still there for the full duration.
I'm pretty sure this will also work with the 1hour raid buffs (Arcane Brilliance, Gift of the Wild, Prayer of Fortitude, etc).