The ornamental design for a noveltyhat, as shown and described.
FIG. 1 is a right side perspective view of a novelty hat showing my new
design the broken line showing of the human form is for purposes of
illustration;
FIG. 2 is a left side perspective view thereof;
FIG. 3 is a rear perspective view thereof;
FIG. 4 is a front elevational view in an unrolled position, the rear is a
mirror image; and,