The ornamental design for a golfswingpracticedevice, as shown and described.
FIG. 1 is an elevational view of the golf swing practice device showing my
new design, the broken lines illustrating a golfer using the device are
for illustrative purposes only and form no part of the claimed design;
FIG. 2 is a perspective view of one side as viewed from the bottom thereof;
and,
FIG. 3 is a perspective view of the opposite side thereof as viewed from
the top.