Aaaah, the eternal love affair between cats and yarn. I suppose it's a bit one sided, seeing as yarn is inanimate, but that doesn't seem to stop cats from loving yarn. Their love will not be denied.
Predictably, my cats are unpredictable when it comes to yarn. Sometimes they'll behave themselves around it and other times they'll try to devour it. Here Edison is showing admirable restraint, possibly because he knows he looks damn well against red. Apologies for the picture quality; they're from my cell phone.