pan supports on range cooker

[candy1567]

Have recently bought a range cooker which has high gloss pan supports on the hob bit.

Whilst these are great for cleaning, they make the pans to slip which is not good at all especially if the pan is full of hot food etc

Have contacted the supplier and they do not make cast iron pan stands for our model of range cooker.

wat i wondered is there anybody which knows how to rough them up a bit without spoiling the look of them so that they are not as slippery.

Thanks

Juliex