The Missing Ring
A plain curtain ring is threaded through a piece of tape or ribbon, knotted at the ends. The guests form a circle round a central figure. The ring is passed swiftly along through hands gripping the tape, while the master of ceremonies counts one, two.
At three, all fists must be threaded by the tape and perfectly motionless, and the man in the center, who is permitted to observe the circuit of the ring, is called upon to say which person has possession of it. Should he guess rightly, he changes places with the individual.