something iv found that my ferrets love are pillow cases, we have hundreds in our linen closet and i just used some baby pins to clip them onto the roof of the cage, my boys have never bothered with the pins (but just incase i put a sheet of ply wood up there with blankets around it) and i pin it so they can easily crawl inside, you can pin the ends close together so its just big enough for one fuzzie or stretch it out for 3, they wash easily and their usually just stacked up in the closest so why not put them to some good use :) [Posted in FML issue 3331]