The ornamental design for a garnishspear, as shown and described.
FIG. 1 is a front perspective view of a garnish spear according to my new and ornamental design;
FIG. 2 is a front elevation view thereof, with the rear elevation view being a mirror image thereof;
FIG. 3 is a left side elevation view thereof;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
The evenly-spaced broken lines depict portions of the garnish spear that form no part of the claimed design. The dash-dot broken lines represent the boundary of the claimed design and form no part of the claimed design. The break lines that separate the garnish spear represent that the garnish spear has indeterminate length. The break lines and any portion between the break lines form no part of the claimed design.