A professional regurgitator is an entertainer whose act consists of swallowing and regurgitating various unusual objects. The objects may consist of anything from live animals (live mice: The Great Waldo, to light bulbs, billiard balls (Stevie Starr) and kerosene (Hadji Ali).
Some magicians perform regurgitation as part of their act (for instance, Harry Houdini), but professional regurgitators may perform regurgitation exclusively. There appears to be a debate as to whether some of the more extreme demonstrations are true or "tricks". Stevie Starr has apparently swallowed an unsolved Rubik's Cube, then regurgitated a solved cube.
Stevie Starr. Saw him on Britain's got Talent 2010. But they disallowed embedding. He has also appeared on Letterman, Leno etc. This clip has most of his tricks except the goldfish, rubiks cube and keyring one.
Afore mentioned Hadji Ali, vaudeville headliner in both the emispheres in the 20s