Even better, if you have some time run the DMF dailies all week for a couple of fairs and buy a pet. I just sold a Tonk for 2500g to get a new alt flush on a new server. If you ran the Sprite Darter quest with several alts back in the old days, they also bring good cash on the AH.
Another idea is to poke around the AHs on a server where you have cash, and also on the server with your lowbie. Find a pet that sells for similar prices at both AHs ... buy on one server and sell on the other. If you get lucky, you can buy at a bargain on one server and sell at full price on the second server to actually make a profit from the experience.