Bright Baubles

About 5s 0c on Beta · Horde (9 hours ago) and 3s 49c on Beta · Alliance (11 hours ago), from player scans. A vendor pays 62c, so the auction house pays 7.7× 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 95s 0c there, against 12s 40c at a vendor.