a connector having a semi-circular profile that delineates a first concavity;

a first limb and a second limb operatively coupled to a first side of the connector and spaced apart from one another via the connector, the first and second limbs cooperating to delineate a first cup, where the first limb includes a first limb concave arcuate surface angled toward a second limb concave arcuate surface of the second limb, where the second limb concave arcuate surface is angled toward the first limb concave arcuate surface; and,

a third limb and a fourth limb operatively coupled to a second side of the connector, the third limb includes a third limb arcuate surface angled toward a fourth limb arcuate surface of the fourth limb, where the third limb arcuate surface and the fourth limb arcuate surface cooperate to delineate a second cup, and where the first side is generally opposite the second side; wherein the frame is fabricated from a resilient polymer,

where the first limb includes a free end that is independently repositionable with respect to a free end of the second limb.