The ornamental design for a bathtoy, as shown and described.
FIG. 1 is a perspective view of a bath toy showing our new design;
FIG. 2 is a side elevational view thereof;
FIG. 3 is a side elevational view thereof, opposite that shown in FIG. 2;
FIG. 4 is a front elevational view thereof; and,
FIG. 5 is a top plan view thereof.
In a bottom view of the bath toy, the handle portion is a mirror image of the top view; and the pattern on the wide portion follows the radial arrangement seen from the top.
The broken lines are included for the purpose of illustrating portions of the bath toy that form no part of the claimed design.