OK - blue batmobile hasn't been on NASIOC for about 6months now, and his email address is no longer valid.....so I'm guessing these light covers arn't available at the moment.
Have trolled the net, and found a american company called DecalFX who do similar things. Basically looks like window tint film and a heat gun. Here's a video of how to do it:
Light Cover Tinting Video
Company web address is:
DECAL-FX
Hope this helps??