Hi--
 
For chewing get Cheweasels or thier equivalent.  Usually an amber shaped
star, may be 5 pt like a sherrif's badge or 10 pt ( usually the Marshall
brand).  complete safe to chew and swallow.
 
A Nylar bone is another good choice for a chewing ferret.
 
I give my ferrets fur covered stuffed dog toys.  Most have held up well to
being chewed on my my ferrets and my dogs.  I prefer to geth them with as
little decoration as possible so there is nothing to tear off.  I get
"racoons", squirrels, foxes and walrus or dolphins.  the plain fuzzballs
were a disaster.
 
I also get hard plastic jingle balls, some solid, some waffled so the
ferret can hold onto them and carry them around.
 
Hope this helps.
 
KG
[Posted in FML issue 3051]