Once upon a time we had cats and Maggies. Sometimes I would come into the living room to find a cat perched on top of a Maggie. I have described my cat training method as "shock and awe", and it worked. The cat quickly learned that the Maggies were a no-no. Fortunately no damage was done...there was enough clearance between the grill cloth and the mylar. (But this was the old style cloth...woven not knitted like the new ones).
If the cat decided to use them as a scratching post, you would have a problem. I have seen a spray can of pet repellant in Petco. Try that.
If the cat decided to use them as a scratching post, you would have a problem. I have seen a spray can of pet repellant in Petco. Try that.