Plum & Bob are two personified PlumbBobs who are a running gag in The Sims offices at Redwood, CA. They first appeared May 3, 2010 on The Sims 3 Facebook page. They often appear in silly situations with punchline captions. They also started appearing in Twitter updates and on August 27, 2010 they got the job of hosting the official The Sims 3 Tumblr page