It's a Scourge Device (Horde)
It's a Scourge Device is a Horde-only quest for level 10-30 in Howling Fjord. It rewards 1 reputation reward and 525 experience.
Description
The Scourge creature you just destroyed had this device held in its clutches. It has a jewel set into it which looks similar to the one that tops the scourging crystals.
Surely, Apothecary Anastasia would like to have a look at this.