Here's the ticket:
http://www.buyroadwrap.com/
It's a bit like a heavier Saran Wrap. But believe me, it does the job! A friend and I drove a car he bought from NY to OH a few years back. He'd bought the Road Wrap before we left OH to go get the car. We applied it to the clean car before we started the road trip back and it worked out great! Not intended as a rock protector but it certainly seemed as though it would do well if small pebbles, etc. flew up off the road. It's also intended to be left on temporarily.
Bill
