A yo-yo wherein each half body has three essential elements: a axle/hub assembly,
a rim, and an interior space containing flexible, compressible material, such as
an elastomer or a bladder filled with gas, liquid, or gel. The axle/hub assembly
and the rim contain the flexible, compressible material but are not rigidly in
contact with each other. In this way a shock to the rim and vibrations to the string
are suppressed and dampened by the flexible, compressible material. For greater
flexibility and shock damping, there could be cavities (grooves or holes) in the
elastomer material or for greater lateral stability, the rim could overlap the
gaps between it and the axle/hub assembly. There could also be containment/alignment
walls extending into the flexible, compressible material or O-rings in gaps between
the rim and the axle/hub assembly.
