Good afternoon, I came across this on one of the environmental news sites I read regularly.
http://www.treehugger.com/files/2009/01/bike-lane-projector.php
It's a projector that mounts on the back of your bike and shines an image of a bike lane under you as you ride. Although it's technically incorrect (every public road is a bike lane in its entirety) it might help get the attention of motorists who don't know that.
Nick
-- Nick Hein Director, Positive Spin Morgantown, WV ph 304-276-0213 --