The ornamental design for a balletshoe, as shown and described.
FIG. 1 is a front elevational view of a ballet shoe showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a right side view in enlarge scale thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a perspective view thereof; and,
FIG. 6 is another perspective view thereof.
The broken lines shown illustrate environmental information only and do not form part of the claimed design.
The left side view of the ballet shoe is the mirror image of the right side view; the top plan view of the ballet shoe is the mirror image of the bottom plan view.