The ornamental design for a cover for a lollipop, substantially as shown and described.
FIG. 1 is a perspective view of a cover for a lollipop showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view of the cover for a lollipop of FIG. 1.
The broken lines showing of the stick and wrapper in FIGS. 1–5 are included for the purpose of illustrating unclaimed portions and form no part of the claimed design.