Portion of a Menstrual Cup

FIG. 1 is a perspective view of a portion of a menstrual cup;

FIG. 2 is a front view thereof, where a back view is identical;

FIG. 3 is a side view thereof, where a right-side view and left-side view are identical;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

The broken lines are for illustrative purposes only and form no part of the claimed design. The break lines are illustrative of a variable length and the appearance of any portion of the article between the break lines forms no part of the claim design.