US D360974 S
FIG. 1 is a perspective view of a clip-on golf ball holder showing my new design; the broken line showing of a golf ball being for illustrative purposes only and forming no part of claimed design;
FIG. 2 is a front elevational view;
FIG. 3 is a top plan view;
FIG. 4 is a right side elevation;
FIG. 5 is a rear elevation; and,
FIG. 6 is a bottom plan view.
The ornamental design for clip-on golf ball holder, as shown and described.