I dog sat a rather large doggie several months ago, and he tore apart all the large mice, exposing the plastic. My cat(s) liked the pelts as well as the plastic part, so I let them play with both - twice the amount of toys. I guess lots would depend on what Ebby likes to eat! Sounds as though some cats will eat anything!

I think you should watch to see if Ebby starts to chew on the plastic and if she consumes it, I would snatch it away. It's your call. To be safe, remove the torn parts and invest your extra cash in a cat toy manufacting company.