I'm just nuts over interactive ads and this is a great one. It for the Brazilian Antarcita beer. You put your name in and somebody else's name too. The names then appear on live characters - not cartoons. The girl says (loose translation), "I have your name as a tattoo, want to see it?" After the lovely reveal, she calls for Paulo to show his tattoo and that's the fun part.
Click the source URL for the version I customized (the video can't be embedded).