The ornamental design for a maraca handle, as shown and described.
FIG. 1 is a top perspective view of a maraca handle;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a front elevational view thereof, with the rear elevation being a mirror image thereof;
FIG. 4 is a top plan view thereof; and,
FIG. 5 is a bottom plan view thereof.
The broken lines showing the first noise-producing chamber, the second noise-producing chamber, and the stopper in FIGS. 1-5 is included for the purpose of showing environmental structure and form no part of the claimed design.