I grinded forever to get that Kalu'ak reputation, but before I did someone gave me a Pengu anyway. So I figured I'd pass the savings on to everyone else. If you're on the server Zul'jin (US) contact me and I'll get you a Pengu for the same price the Kalu'ak sell it to me (like 10 gold, I think). Can't afford it? I'll also trade it to you for some pet I don't have. Don't have that either? Message me, and we'll work something out. Contact Asmund for Alliance and Kazkalla for Horde.
I've also got other pets to trade. I'm not playing right now, but offhand I remember I've got a spare Sewer Rat (from Dalaran) and a spare Sinister Squashling (from Halloween). Let me know if you're interested.