Here are some Star Trek-inspired iPod and MacBook engravings for your perusal. The artist and/or company that did these engravings is unknown at this time but I’m sure he/she/they will be the hit of some sort of convention; Apple, Star Trek, or otherwise.
Star Trek engraved Apple products [Geekstir.com] via Newlaunches.com
This seems to be the engraving company:
http://www.etchstar.com/gallery.php
Holy shit that Macbook looks awesome!