Looking for a part or what it is called..

Hey Luke, just spitballin here, but why couldn't you get a thin piece of plastic, maybe milk jug material and cut it just a little bigger than the outside diameter, lay it on there and use a heat gun or something to warm it and let it form to that piece and then trim it off.

For the inside diameter trim it just a little out from the edge so you can warm it and form it down over the edge like it is in the pic.


Just a two penny thought.