The ornamental design for an ice-cream candle, as shown and described.
FIG. 1 is a front elevational view of a ice-cream candle showing my new design;
FIG. 2 is a rear elevational view;
FIG. 3 is a top plan view;
FIG. 4 is a bottom plan view;
FIG. 5 is a right side elevational view; and,
FIG. 6 is a left side elevational view.
The drawings are lined on the candle for color and on the wick for the surface of the wick respectively. The portions of FIG. 4 shown in broken lines form no part of the claimed design.