The ornamental design for handle for a compostingtoilet, as shown and described.
FIG. 1 is a front perspective view of a composting toilet drawn in dashed
outline to show surrounding structure, the subject handle being shown in a
stored orientation disposed in association with the toilet;
FIG. 2 is a similar view to FIG. 1 showing the handle in an operative
orientation;
FIG. 3 (drawn to a larger scale) is a front perspective view of the handle
in the operative orientation shown in FIG. 2;
FIG. 4 (drawn to a larger scale) is a rear perspective view of the handle
in the operative orientation shown in FIG. 2; and,
Three (3) sheets of drawings showing the said Industrial Design are
hereunto annexed.