Just a warning about the willow kipper toy - the one you can get at PAH covered in fabric one side and hessian the other, and catnip inside.
Shanti took a great liking to it, so much so that she demolished the hessian side and started ripping the insides out! Then I realised she was actually chewing the stuffing, within which natural catnip is sprinkled and embedded. Naturally, I took the toy away from her (which didn't please her greatly) and threw it away. I kept an eye on her all evening and she seemed to be ok, but in the morning I found a pile of cat sick in the bathroom, complete with synthetic stuffing from the kipper.
I've informed PAH about it, this is just a heads up in case anyone's thinking of buying one.