You will love this site for decals of all sorts:
http://www.bobwhitedecals.com/ but you can also try Mustangworld's speedshop online. In the meantime tell me what you think of what I did to mine:
Yes, that is blue neon behind the letters which are precision-cut by me

. I think most people like it, but it's allot of work.
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Blueneonman -
'95 5.0L Mustang GT Convertible | K&N Custom Cold Air Intake | FMS 9mm Wires | Hollow Cats | Flowmaster 2 Chambers | BBK Subframes | 6-pt Rollcage | King Cobra Clutch | FMS Adjustable Clutch Cable | B&M Short Throw | Coolest Neon Lighting on a Mustang EVER!
Homepage:
http://www16.brinkster.com/blueneonman/