Patent ID: 7137863

Claim:
A toy comprising: a flexible elongated tethering means; a first stopper mounted on and adjacent a first end of said flexible elongated tethering means, said first stopper having a first stopper width greater than the diameter of said tethering means; a second stopper mounted on and adjacent a second end of said flexible elongated tethering means, said second stopper having a second stopper width greater than the diameter of said tethering means, said tethering means being unbifurcated between said first stopper and said second stopper; a first movable mass having a first bore therethrough through which said tethering means passes, said first bore of said first movable mass having a first bore diameter greater than the diameter of said tethering means and less than said first stopper width so as to allow said first movable mass to move freely along said tethering means but not pass over said first stopper; and a second movable mass having a second bore therethrough through which said tethering means passes, said second bore of said second movable mass having a second bore diameter greater than the diameter of said tethering means and less than said second stopper width so as to allow said second movable mass to move freely along said tethering means but not pass over said second stopper, said first movable mass being slidable freely and unimpeded along said tethering means between said first stopper and said second movable mass, and said second movable mass being slidable freely and unimpeded along said tethering means between said second stopper and said first movable mass.