I am going to install two circle reflectors on the back of my jeep that are bulb backlit via switches from the dashboard. One circle will be a smiley face, and the other will be a frown. I figure, when someone lets me by or is nice, I will light up the smiley face, and when someone cuts me off or does something that I dont like, I would light up the frown.

Two questions:

1. Any suggestions on matierals to use? (thinking about using something from peterson for the circle reflectors http://www.pmlights.com/products.cfm

2. Would you kill a man for lighting up a frown face on the back of his car at you?