They all got a special bone (I don't remember what they're called) that they get every year for Christmas.

other than the bones they got:

Tango- a new frisbee, a squeaky toy and various balls.
Echo- a rope ring, a rope with a kong attatched and a pigs ear.
Tia- a new stuffed squeaky hippo, a badger squeaky toy and something else (I don't remember what, i wrapped it a while ago).

I'm sure they all got more things but I can't think of what right now