We claim the ornamental design for a percussion instrument, as shown and described.
FIG. 1 is a top, front, left side perspective view of a percussion instrument showing our invention;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a left side elevational view thereof; and,
FIG. 8 is a top, front, left side perspective view thereof, the broken line showing of the stand is for illustrative purposes only and forms no part of the claimed design.
The ornamental design which is claimed is shown in solid lines in the drawings. The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design.