Yes, well, new laptop is very shiny. And the question was what to engrave on it.
I have gone for an Astec calendar. From what googling I have done, it is not the same as the Mayan calendar, so not quite a 2012 thing. It is, however, a very intricate image.
On the lid, obviously, I have to make space for the apple logo, so I have put the face from the centre of the original on the back instead.
Overall, pretty distinctive. If anyone wants a MacBook Pro engraved, we would charge around £25+VAT for this type of job. It is a one off, like a tattoo, but thankfully you can always get a new laptop if you change your mind in the future.