OK, it's fake, spoof, artist's interpretation of a bronzed baby poop. Oh hell, I'll post the picture for the people that can't/won't follow the link.
I doubt if the Crazies....er..uh...Cruises... have anything to do with this. Probably feel any press is good press, or they'd have their lawyers and hit men right on it. They're attention whores. The "artist" is too, as well as a con man.
Auctioning it off for charity is just to give the poor schmuck that buys it an out, when everyone laughs at him/her. I doubt if the place that paid a fortune for Jesus on toast would even touch this crap.(pun alert)