The ornamental design for an eyelashcurler, as shown and described.
FIG. 1 is a top front perspective view of an eyelash curler showing my new design;
FIG. 2 is a bottom front perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a right side elevational view thereof; and,
FIG. 8 is a left side elevational view thereof.
The broken lines are for illustrative purposes only and form no part of the claimed design. The dot-dashed lines define the boundary of the claimed design but form no part thereof.