The ornamental design for a cup with functionalaperture, as shown and described.
FIG. 1 is a front, top perspective view of a cup with functional aperture showing the new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a left side elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is an in use front, top perspective view thereof; and,
FIG. 9 is a top side perspective view thereof.
The broken line showing of a can in FIG. 8 and a cooling insert in FIG. 9 are included for the purpose of illustration and form no part of the claimed design.