Engraving handheld computers

For the past couple of years I’ve been using 7-inch handhelds from One-Netbook as my main workstation.
The devices do their job pretty well. And from an aesthetic point of view, I find these devices quite pleasing. The only thing that bothered me was a bit boring lid with no marks what so ever. Therefore I decided to put my custom logo using a laser engraving technique. The lady in the engraving is Themis (quite unusual, without a sword and with open eyes).