The ornamental design for a mud pan buckethook, as shown and described.
FIG. 1 is a perspective view of a mud pan bucket hook showing my new design.
FIG. 2 is a perspective view of a mud pan bucket hook of FIG. 1 in an operative position supporting a mud pan.
FIG. 3 is a front elevational view of the mud pan bucket hook of FIG. 2.
FIG. 4 is a rear elevational view thereof.
FIG. 5 is a left side elevational view thereof.
FIG. 6 is a right side elevational thereof.
FIG. 7 is a top view thereof; and,
FIG. 8 is a bottom view thereof.
The broken lines showing of the bucket in FIG. 1 are included for the purpose of illustrating environment and form no part of the claimed design. The broken lines showing of the bucket and mud pan in FIG. 2 are included for the purpose of illustrating environment and form no part of the claimed design.