ZuPreem at mail order cataloges
Jeffers 1-800-533-3377
Care A Lot Pet Supply1-800-343-7680
 
Litter box in cage.  T clamp down I use a C clamp from hard ware store.
I put baby blankets in the bottom of the cage where they want to use
another corner.  I hold the blanket and put my sent on it first rub on my
face some times, then place in extra corners.  How much play time do your
ferrets have???  They need lots.  How about trying a diffrent litter.  Or
clean the box more often.
 
Carol
[Posted in FML issue 4818]