BDSM Jewelry?

So I’ve heard that there are a few companies out there that fashion jewelry that doubles as BDSM items; necklaces to ships, bracelets to handcuffs, etc. What I want to know is, does anyone have experience with these? I’m interested mainly in the handcuffs for me, but I’m fearful that the chain will be too flimsy and break. What companies have y’all brought from? I want something I can wear out that doesn’t give it away (I’m not into strangers knowing my kinks), and preferably something that doesn’t break the bank. Suggestions?