Rocky will eat any plastic shopping bag he can get. We have to be very careful with him. He also eats the little bungee cord on cat toys. I knew he had a thing for plastic bags but I didn't know about the cords until he threw up one day and there were two different colored bungee cords along with a couple of plastic bag handles. Scared me half to death. I have to get groceries and anything I buy out of the bag immediately and store the bags in the garage out of his reach or he will eat the handles in a matter of seconds.

Rumor will chew on plastic bags but her big thing is to lick plastic. She licks all kinds of plastic things. She's a fruit cup!

I've been told on here before that plastic shopping bags are made with lard and that is what attracts cats. In my house it certainly attracts two of them (they are brother and sister so I think it's in their blood).