What's in that Disgusting Jar?

No, this isn't a reference to my messy refrigerator. Salsa is supposed to be blue and fuzzy, right?

Many of us have been speculating what might pop out of the [Disgusting Jar] sold by the Frenzyheart Tribe (the faction of Wolvar opposing The Oracles, whose [Mysterious Egg] has a chance to give one of four vanity pets). Unfortunately, there is no evidence to suggest that the jar has any chance to give a pet. So far, the only confirmed reward is Frenzyheart Brew, which reportedly turns you into a Wolvar for a short period of time. Rest assured that if some slimy creature does crawl out of one of these jars, we will let you know.