Present the solid length of ribbon to the audience, then call upon an unsuspecting spectator to assist you in a dangerously funny experiment. Is it possible for the ribbon to pass through the spectator's neck! With great comedy, the ribbon is placed around the spectator's neck and is tied in a knot.
Unfortunately you cannot remember the instructions, and step away from the spectator forgetting to let go of the ribbon ends. As you do so, the ribbon passes through the spectator's neck! This amazing effect is self working and is hilarious as well!