Here is the modified version of the Rattle TSB that I did on my RAV.  The basic difference is that I applied the felt pad to the bottom edge of the windshield rather than to the retainer clips on the cowl.  I left the original factory felt pads on the cowl so there is now twice the padding.

The felt pad I used is a heavy duty self adhesive felt used for putting on furniture legs and such.  It cost about $2.00 at Home Depot and you should be able to get something similar at any hardware or home improvement store. 

I first cut four pieces 1-1/8" x 1-3/4" from the pad.  Don't need to be too exact here - just cut a strip about 1-3/4" wide and cut this into 4 pieces.

Now for the cowl panel removal.  First remove the battery cover cowl by removing the six plastic screws and then carefully prying out the body of the clips under the screws.  If you haven't already looked at the fix page for this you may want to consider replacing the plastic screw-clips with real screws when you're done.  Instructions for this process are HERE.

Once the battery cover cowl is off you need to remove the main cowl. First remove the windshield wiper arms.  This is done by first carefully prying off the plastic cap at the base of the wiper arm and then removing the 4mm nut that holds the arm in place.  Pull the wiper up away from the windshield before removing the nut to take the pressure off the wiper arm.  Once the nut is removed the whole arm will pull off fairly easily.  The arrow on the picture below shows the plastic cap already removed.

Next remove all of the plastic rivets that hold the cowl panel in place.  There are seven of these total - two along the tow edge near the windshield, four along the bottom edge and one on the edge that is under the battery cover cowl.  To remove the rivets press the center pin into the body of the rivet about half way.  Don't push it all the way through or you won't be able to retrieve it on a couple of the rivets since there's no access to the back.  Once the pin is pushed in carefully pry up the rivet out using a small screwdriver.  Be careful not to break the head of the rivet by prying too hard.  The rivets at the bottom edge of the cowl are exposed in the back and for these it's easier to reach behind and pull the center pin out completely after pushing it through from the top.  You can then push the rivet out from the back with you finger and avoid having to pry it at all.  Note the length of the rivets as you remove them - they are not all the same size and need to be reinstalled in the correct location.

Next pull the cowl panel off by pulling it up slightly and away from the windshield.  There are four plastic clips holding it to the windshield (which are the cause of the rattle). Here's what it looks like with the cowl off.

You now need to mark the location of the clips on the the cowl on the windshield.  The best way to do this is to do this is to use a permanent marker or grease pencil.  First mark the location of the four clips on the rubber strip on the top edge of the cowl (on the outside of the rubber strip).  Next put the cowl back in position on the car being sure that the rivet holes all line up.  To replace the cowl you need to use the reverse of the removal method - tip it slightly forward and make sure that the clips slide in under the windshield.  Here's what the clips look like.  The arrow shows the mark made on the rubber edge.

Once the cowl is back in place transfer the marks from the rubber strip to the windshield itself.  Now remove the cowl again.  Apply a piece of felt to each marked location on the windshield.  The felt should wrap around the edge of the windshield with about an equal amount on the front and back.  It's important to cover enough of the BACK of the windshield with the felt as this is where the clip makes contact.

Now reinstall the cowl using the reverse of the removal process.  To put the rivets back in first remove the center pin completely and squeeze the four sides of the clip together.  Carefully push the body of the rivet back through the cowl and mounting bracket below.  Then insert the pin into the rivet and press down until the pin is just flush with the top of the rivet body.  Finally, replace the wiper arms being sure to line them back up approximately where they originally were.