The ornamental design for a spatula for large containers, as shown and described.
FIG. 1 sets forth a front view of a spatula for large containers showing the present invention new design in which dashed lines show surface contour changes;
FIG. 2 is a top view thereof;
FIG. 3 is a bottom side view thereof in which dashed lines show surface contour changes;
FIG. 4 is a section side view thereof taken along section line 4-4 in FIG. 1;
FIG. 5 is a rear view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a left side view thereof; and,
FIG. 8 is a perspective side view thereof in which an illustrative handle portion is shown in broken lines and forming no part of the claimed design.