I to worry about the rubber Kongs with ferrets and then i found the solution. My guys have these http://www.wubbaworld.com/shop/order-wubba-wubba.htm They are made from material and are easy for them to get hold of and carry. My guys have 8 small ones and one Giant one. One ferret in particular (Whitham) is obssessed with them and lines them up all in a row. If another ferret (or me) moves one..then he has to start again repositioning them.....think i need to get him medication for OCD lol. Once they get dirty just throw them in the washing machine. Hope this solves your problem Bev (slave to 6 wonderful hobs) [Posted in FML 6650]