How do I stop metal-bottomed pots squeaking on my gas hob? I have a gas hob and metal-bottomed pots. The support for the hob is made of metal and is coated in black plastic, like the image below.  The previous owner has worn away at the layer of plastic that allows pots to move freely and quietly, so the metal is exposed.

The problem I'm trying to solve is that skillets and pots squeak horribly when they are moved due to the metal-on-metal scraping.  


One option is to replace the support, but this seems wasteful and it will crop up again;
Another option would be to heat the metal and use a plastic dip; in school we used a heat-and-dip treatment to treat metal products to give them this nice finish, but I don't have the equipment.


How can I mitigate this noise?  Is there a nice way to completely stop it?
Perhaps use a gas ring reducer to lift the skillets or pots away from the original hobs.

There seem to be various shapes and sizes, both bare metal or enamel coated options in various outlets.





As long they don't squeak themselves against either the pots or hob sounds a relatively cheap and easy to replace solution, and don't require changing the whole hob.

They also don't seem to affect stove efficiency or heat distribution negatively in any significant way.

Alternatively you may use some sort of gas ring heat diffuser, though I suspect these will have a larger effect on performance and efficiency.