The SillyconValley font is patterned after the magnetic coding type you see at the bottom of bank checks. I use in correspondence whenever I need to refer to a credit card, invoice, reference, etc. number. I also use it as my SuperClock font.
For a pattern, I used an old bitmap font called Silicon Valley, that I downloaded from somewhere. I'd love to give credit to the author if I knew who (s)he is.
This font is available in both Type 1 and TrueType format.
This is primal-scream-ware. If you use it and like it, give a let-it-all-out yell. (Please don't do this late at night if people are trying to sleep!)