This may be a stupid question but is it possible to change out the wrist rest as the title says?

Or even some kind of cover that can go over the rest. I just don't like the feeling of the material and it keeps getting these scratches on it very easily. If not, my next question would be what is the best way to clean it? If you guys need anymore details just let me know, sorry if this seems like a vague post. Thanks though.