I have for sale Scotch mastic tape and a 2" putty knife. This is, so far, the only sure-fire way of eliminating the windshield cowl rattle, referenced here. Even the TSB isn't a permanent solution. I used some of the tape on my car, but there is plenty left for another. These will run you $16+ at Home Depot, or you can have mine for...
Price: $10 USD shipped to the lower 48.
Price: $10 USD shipped to the lower 48.