I saw something on someones bike not too long ago. It's cheap and easy, but it adds visibility.
What this guy had done was to attach a CD, to his reflector mount.
All you have to do is unscrew your red rear reflector, put a Compact Disc behind it and screw it back on.
The red reflector is still there, but now it has a bright accentuating backer.
Have you ever seen this done before?
I don't think it's against the law*, and most of us have an old compact disc lying around.
Chrome on a bike can also reflect headlights. This add-on is certainly not aerodynamic, but it is eye-catching.
*unless it is considered a white reflector.