Artist Jeff de Boer makes metal armour for cats. If you haven't already seen it, it's pretty amazing stuff. He calls them “exoforms.” He produced the world's first and only suit of armor for a mouse. It's a fantastic idea, our household pets going to battle, donning external outfits that befit the internal warriors we know they are. He says no, his cats don't actually wear the armour. I would like to see him try to put it on them.
This one is called “White Knight Cat.”
These are “The Seven Samurai Mice.”