I guess this is related to the story, but companies have been making little tickers like the one in Times Square and on my office building for license plate frames for a couple years now. I almost bought one once, but they're message are kind of small.

Here's an example of one:
http://www.clubgpstore.com/itemview.asp?itemid=102

Wow, for $200, I'll continue to express myself with the single finger salute!

I could get myself into a LOT of trouble with one of those things!