This article discusses whether items hanging from the rear view mirror should be banned.  Many people hang items such as crosses or fuzzy dice from their mirror state that it shouldn't be illegal.  People that have been pulled over and ticketed for a separate reason, haven't gotten in trouble for their mirror accessories.  It was believed that is was only illegal to have things hanging on their rear-view mirror if they were a hindrance to drivers.

"Unless it's large and an obvious obstruction, it's just silly for police to pull somebody over for that. People aren't hurting anybody and they're not causing any danger." This is my favorite quote because it shows the common view of everyday drivers. It is indeed silly for police to use their powers to pull people over for such minute reasons.
I disagree with this ban. It is a "gotcha law". It seems like a poor excuse for officers to meet their weekly ticket quota. Many safe drivers hang objects in their rear view mirror.  If the object is not obstructing their view, then what harm is being done? People should have the right to personalize their car as long as it doesn't put themselves or others at risk.