I claim the ornamental design for a lacrosse stick holder, as shown and described.
FIG. 1 is a side perspective view of the lacrosse stick holder.
FIG. 2 is a left side view of the lacrosse stick holder.
FIG. 3 is a right side view of the lacrosse stick holder.
FIG. 4 is a front view of the lacrosse stick holder.
FIG. 5 is a top view of the lacrosse stick holder,
FIG. 6 is a bottom view of the lacrosse stick holder; and,
FIG. 7 is a reduced front perspective view thereof, with the broken-line disclosure of lacrosse sticks shown for illustrative purposes only and forming no part of the claimed design.