Chastity Jewellery

[mistress is god]

I have recently been in the market to buy some kind of chastity necklace for my wife. The obvious key on a chain was not realy what I was looking for.

The best that I have found it the key to my heart type necklace (as per my avitar) as the best kind of direction.
What I would love to find is the logo attached below that I have seen several times on tease web sites for a made up chastity club symbol.

Question to all. Any good Chastity Jewellery sites be it necklaces or other Jewellery that you would recommend?