Well, the battlegrounds are extra special right now, while the Olympics are going on!
Check it out - you can get a Tabard with the Olympics logo on it, and if you win a round, you can get a Gold Medallion which, when used, brings out a non-combat "critter" pet that is a dragon-like creature that is normally associated with China and Chinese cultured events.
How Do I Get My Tabard?
The tabard is super-easy to get. All you have to do is go into a battleground and stay for a round, and the tabard will be mailed to you as a "competitor".
Nothing else!
How Do I Get My "Spirit of Competition" Pet?
Getting the pet is a little more difficult - it requires that you be on a winning team, winning your round of battleground.
I got lucky and got my tabard and pet immediately - went into an AV round and then left for an Eye of the Storm round in the middle of AV, and we won the EOTS so I got the medal for that.
So, go out there on your plethora of toons and pick up the goodies!