Help needed

[morganskye.livejournal.com]

As the holidays approach I find myself thinking about what to make for friends and family. As most of my friends are gamers, I decided to make a few themed gifts. Two similar ideas are the First Aid Kits from Bioshock, and Mentats from Fallout 3. The advantage is that while they're different products their packaging prep would be similar. However the problem lies in the design on the top of the metal case. I want to get the look to be as close as I can get to the game design, but...

1) I can't paint
2) I don't want to use anything that looks cheap or thrown on

I thought about using a few stencils, or 'rub-on' lettering. I even considered printing something out and gluing it on, but I felt that most of these options would violate #2. I also need the Mentat box to handle antiquing (it went through a nuclear war after all).

( My plans for the boxes so far. )

I'm open to any and all suggestions.