Suction cup

[0001] FIG. 1 is a top, front, and left side perspective view of the suction cup, showing my new design;

[0002] FIG. 2 is a bottom, rear, and right side perspective view thereof;

[0003] FIG. 3 is a front view thereof;

[0004] FIG. 4 is a rear view thereof;

[0005] FIG. 5 is a left side view thereof;

[0006] FIG. 6 is a right side view thereof;

[0007] FIG. 7 is a top view thereof; and,

[0008] FIG. 8 is a bottom view thereof.

[0009] The broken lines in the drawings depict portions of the suction cup that form no part of the claimed design.