The ornamental design for a hatshaper, as shown and described.
FIG. 1 is a front top left perspective view of a hat shaper;
FIG. 2 is a front top right perspective view thereof;
FIG. 3 is a rear top right perspective view thereof;
FIG. 4 is a rear top left perspective view thereof;
FIG. 5 is a rear bottom right perspective view thereof;
FIG. 6 is a front elevational view thereof;
FIG. 7 is a rear elevational view thereof;
FIG. 8 is a top plan view thereof;
FIG. 9 is a bottom plan view thereof;
FIG. 10 is a left elevational view thereof; and,
FIG. 11 is a right elevational view thereof.
The broken lines in FIGS. 1-11 and the unshaded areas within the broken lines define portions of the hat shaper that form no part of the claimed design.