I've not seen this trick performed but this is what I know about it:
You borrow a wedding ring from a spectator. You now introduce an ring box and place the borrowed ring in the box. The lid is closed and you place the box in the spectator's outstretched hand. Next you present a shining Wedding Bell. The spectator is told to try the bell. It has a wonderful sound.
"In some countries the priest rings The Wedding Bell three times during the ceremony. During the third time the groom is supposed to open the box and give the ring to his bride. Please, will you ring the bell three times on my signal."
During the third ringing you open the box, only to find that the wedding ring has vanished! You ask the spectator to look inside The Wedding Bell. THERE IS THE SPECTATOR'S RING! As a matter of fact THE CLAPPER THAT MADE THE SOUND TURNS OUT TO BE THE RING!!
Hope it's of some use.
