Corrected entry: In Ocean's Eleven, Rusty has a large tattoo on his left arm that goes down to his hand and is on the back of his hand. At the beginning of Ocean's Twelve, when he comes home and takes his jacket off, he has a different, hammerhead shark shaped tattoo on his arm. Later, when they are on the plane to Amsterdam and he is awakened by Matt Damon, there is a tattoo that goes down to his hand again.
Bonita Kilpatrick
26th Jun 2006
Correction: The tattoo we see in present day is the tattoo he has now. The tattoo you see in the beginning of the movie is from the past, so he either got it finished, retouched, redone, or covered over. Anything he could've added/changed within the timespan the two events take place.
The same tattoo on the left hand is in Ocean's Eleven too, many years before the room scene.