UK Number Plate Source

Anyone looking for custom UK number plates there is a great site
that previews different styles.
You can choose different fonts, borders, logos etc
It's fantastic

http://www.fancyplates.com/constructor.html

All you need to do is grab the image from the screen for your models.
If you do a screen grab ('Print Screen')
Then paste it into a paint package eg Paint Shop Pro
You can then scale it down to whatever size you want and print it out

Since your reducing the size, resolution will be fine.

eg
http://www.vauxhallsportscarclub.co.uk/members/gallery/images/1000997b.jpg