It's called the Avarice Amulet, though it's been called lots of things over the course of its life - initially it was a Watchwork Golem, a traitorous creachoid that would flip allegiance on death. They thought it might be fun if it were an artifact, which fit the Penny Arcade reference better anyhow, and ultimately that's the genetic stock that survived testing. It's best for the weirdo, novel formats we tend to like - there's a cool piece with meta-level suggestions over at TouchArcade featuring the official art, which has a tasteful reference for you to savor.
(CW)TB
