The ornamental design for a maledollbookmark, as shown and described.
FIG. 1 is a perspective view of a male doll bookmark, showing my new design;
FIG. 2 is a left side elevational view thereof, the side opposite being identical;
FIG. 3 is a front elevational view thereof; and,
FIG. 4 is a rear elevational view thereof.
The broken lines showing facial features, facial hair except for the beard, an earring, and a cowboy hat are for illustrative purposes only and form no part of the claimed design. The detached portion of the beard represents the bottom of the beard. No particular beard length is claimed.