The ornamental design for Christmas treetop ornament rotator, as shown and described.
FIG. 1 is a perspective view of a Christmas treetop ornament rotator
showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a side elevational view thereof; and,
FIG. 4 is a bottom plan view thereof.
The broken lines in FIG. 1 showing an electrical connector and clip-type
bracket attached to a tree limb, and the broken lines in FIGS. 2-4 showing
an electrical connector are for illustrative environmental purposes only
and form no part of the claimed design.