I've had a few things. I have the Time Lost Protodrake on two different toons (one time it spawned right in front of me, the other time I saw it fly by on a flight path and had to scurry back and find it), and last night I was able to tame the spirit beasts Skoll and Loque'nahak like 15 minutes apart. Also once right when the new VOA boss came out with ToC gear, I got both my gloves and legs in a 25 man because they both dropped and the only other hunter in the raid was AFK. I also got the Headless Horseman's mount my first try on my hunter, and the blue dragon mount from Occulus the first time I did it on my DK.
Okay, your guys turn!
Edit: Also like in the second or third week of ICC being out, one of the 264 boe strength rings dropped in a 10 man but somehow nobody needed it so we all rolled. I won it and sold it for 12,000 gold.