They love this thing. It was originally intended to have a hole small enough that only Ysabell should be able to fit inside. Naturally, the other two promptly performed some ferret magic and squeezed in. Thankfully, Ysabell doesn’t mind sharing.
Ysabell: You are getting sleepy…sleepy…now you feel the sudden urge to bring me plastic bags…yes…oh, and all the cardboard in the house too, if you don’t mind…