The abbreviated version is to take a trunk lock and dip it into some of the tool handle rubber dip. You will have to play with it a little to get the technique down on how to get consistent coverage. you might have to dip and let dry and then dip again to get the thickness desired. After you have a dried cocoon you use a Exacto knife to cut out the round center and then carefully peel off and transfer . Take it off and then put it back on so as to stretch it out a little. You don't want the sealed down look. Others have taken rubber inner tube material and done the same thing. I hope this helps. Bob