The ornamental design for a ballreturndevice, as shown and described.
FIG. 1 is a perspective view of the ball return device showing my new design in association with a basketball hoop and other related environmental structure;
FIG. 2 is a front view showing the ball return device without the environmental structure;
FIG. 3 is a left side view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The broken line showing of the basketball hoop with associated environmental structure in FIG. 1 and elements of the ball return device including a graphic interface in FIGS. 1 and 3 are for illustrative purposes only and form no part of the claimed design.