Although the picture below isn't clear (I'm still looking for a reasonably priced Digicam), check out the embossed markings on my PG Zaku which identifies which type mech it is...
It's very cool and very military looking. How did I do it? The tip comes from one of the Japanese hobby magazines.
- Look at the runners on your models and you'll find that they'll have almost all the letters you need. For the mech type, it's normally embossed on all the runners - sometimes with different fonts and sizes
- Decide which letters you will want to use
- With a sharp hobby blade (I recommend a new one), carefully cut under the letter to remove it. Because the letters are so thin, they'll curl when you cut them out - I recommend cutting from one direction till about half-way through, then carefully use a flat object to press the curled portion back down, then cut the other half from the other direction.
- After cutting all your letters, carefully glue them to your model. I used a piece of masking tape as a guide.
It'll look even better painted and dry-brushed to bring out the contrast!
credit : http://gundam_base.tripod.com/