The ornamental design for a playclocktower, as shown and described.
FIG. 1 is a perspective view of a play clock tower showing my new design;
FIG. 2 is an enlarged scale top plan view thereof;
FIG. 3 is an enlarged scale right side elevation view thereof; the left
side elevation view being a mirror image except for the orientation of
circular and square decorations and flag; and,
FIG. 4 is an enlarged scale front elevation view thereof.
The bottom is plain and unornamented. The rear elevation portion not
disclosed is unornamented.