I apologise for repeating a topic which I see has been raised many times before, but unfortunately I haven't been able to find an answer, despite spending around 3 hours this morning searching the internet.
I own a CB6000 and have recently been fortunate enough to meet a Mistress who wants to cuckold me.
My Mistress and I are keen to use a metal padlock, rather than the plastic numbered locks. She is also open to the idea of wearing the key on a necklace. However, due to the vanilla side of her life (such as Her place of work and social circles), She would prefer it if the key looked like a piece of jewellery.
I've seen various padlocks and keys, like this...

The style of the key in the picture is perfect - as it could pass off as a piece of jewellery on a necklace - but I've read that these padlocks can easily be picked and aren't unique in that similar keys can be used to unlock it.
Has anyone managed to find such a padlock/key combination that would be robust enough to keep me locked up, yet the key would look like a piece of jewellery?
I have a horrible feeling such a padlock doen't exist.

Any help would be greatly appreciated.
Many thanks,
mic