Get a little bit naughty with the Handcuff Ring by Bruce Boone from BooneRings on Etsy.
Made out of titanium, this cuff ring actually works and comes with a little key that locks the ring into place. The great thing about this concept is that the sizing is adjustable and just like handcuffs are tightened to fit around any wrist size, the ring can be tightened to fit each finger perfectly. The key can be left in place as part of the design embellishment, or it can be hung on a chain and given to a loved one to wear as a necklace.
The Handcuff Ring is a charming accessory for anyone who wants to wear some low-key handcuff jewelry.