1:18 Police Light Bars

I am customizing some 1:18 police cars and would like to know if there is a way to remove the coloring from the light bar lenses. For example, I have a red/blue light bar and would like to strip them to recolor and make correct for a specific police agency. Below is an example of a UT models 1:18 light bar that came off of a Las Vegas Metro PD Caprice I wish to color change.

http://files.automotiveforums.com/gallery/watermark.php?file=/500/277746lightbar.JPG

Any help or advice is appreciated.

to make clear taillights on one of my cars i dipped it in nail polish remover this will probably work on yours but this sometimes melts the plastic hope this helps

Nail Polish Remover, just make sure it dosnt have acetone in it, that's what kills plastic.

Just put non-acetone nail polish remover on a Q-Tip, and wipe away...

Thanks guys! I will give that a try.