FIG. 1 is a top frontal perspective view of a first embodiment of a mop bucket and wringer according to my new design;

FIG. 2 is a front view of the mop bucket and wringer shown in FIG. 1;

FIG. 3 is a left side view of the mop bucket and wringer shown in FIG. 1;

FIG. 4 is a right side view of the mop bucket and wringer shown in FIG. 1;

FIG. 5 is a back view of the mop bucket and wringer shown in FIG. 1;

FIG. 6 is a top view of the mop bucket and wringer shown in FIG. 1; and,

FIG. 7 is a bottom view of the mop bucket and wringer shown in FIG. 1.

The ornamental design which is claimed is shown in solid lines in the drawings. The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design.