Kali's Collar:

My calico lady's -- ahem, necklace.  She would never admit to wearing a collar (what royalty would stoop so low, after all?).  She didn't even wear this for very long, but I think 24 hours with a collar may be a record for her.  And when Kali took it off, my other cat, Copper, got to wear it for a while.  Even he didn't wear it for very long either, though.

Rings:

18 ga 1/4" ID
Silver Artistic Wire
In the Half Persian 3:1 weave.