I had a custom request for a ferret toy made specifically out of tulle and rubber. My ferret knowledge is greatly limited. I call this a Ferret Flower. The balls end is a crocheted hyperbolic shape worked in tulle, with dangly tulley bits all around, forming a big poof ball. The stem is crocheted tulle with a strip of rubber running down the middle. The 'leaves' and 'roots' are hand sewn silicon rubber. So I figure it's like a ball to toss around, a tug-of-war thingy, and a chewy gnawy thingy all in one.
I hope the ferrets approve.