There used to be a harness made from rounded nylon, that made a figure 8, with a metal device in the center (it was packaged on a cardboard cutout of a ferret). I bought one when I first got my oldest Mikette. I was letting her investigate my Mom's backyard. She was playing around roots and holes of a large tree. When her little tail was barely in view I decided she was to far and went to pull her closer by the harness. Imagine my horror when half of the harness came off! Now I really wanted her out but was terrified to pull any more on the harness and lose the other half! I got her out and quickly got rid of the harness! Since then I've read that the "figure eight harness" is no good, but the "figure H harnesses" work well. Now I have three fuzzies and three H harnesses. They are made of a flat nylon and have two independent circles (one for around the neck one for around the chest) that are connected by a band section of nylon (thus forming a kind of H on the ferret) [Posted in FML issue 3887]