Haunch of Meat

About 7c on Beta · Horde (5 hours ago) and 8c on Beta · Alliance (6 hours ago), from player scans. A vendor pays 6c, so the auction house pays 1.1× more.

No. It is in Classic Era too, with the same item level, vendor price and stack size.

Sell it on the auction house. After the 5% cut a stack of 20 brings about 1s 33c there, against 1s 20c at a vendor.