The ornamental design for a sandal with pinwheelclip, as shown and described.
FIG. 1 is a front perspective view of a sandal with pinwheel clip showing my new design;
FIG. 2 is a back perspective view of a sandal with pinwheel clip;
FIG. 3 is a front perspective view of a sandal with pinwheel clip;
FIG. 4 is a top view of a sandal with pinwheel clip;
FIG. 5 is a bottom view of a sandal with pinwheel clip;
FIG. 6 is a right side view of a sandal with pinwheel clip; and,
FIG. 7 is a left side view of a sandal with pinwheel clip.
Left side views not shown are mirror images of right side views. Any broken lines illustrative of environmental structure in the drawings are not part of the design sought to be patented.