You'll have a wonderful crop of grass'' in under a week. Cut a difficult parcel of fabric to size. You might locate these free somewhere, or they're just a few dollars to purchase new. Then there's the extra bonus of locating a treat.
Ferrets are very inquisitive animals and need plenty of toys to keep them entertained and occupied. If they don't have enough toys or toys that interest them, they'll get easily bored. By giving them plenty of fun toys you'll be providing them with.