The ornamental design for an interchangeable pedestal for a globe, as shown and described.
FIG. 1 is a perspective view of an interchangeable pedestal for a globe in accordance with the present invention with a first extension, a frame and a base;
FIG. 2 is a top plan view of a base thereof, with a first extension and a frame omitted for clarity of illustration;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a top plan view of an interchangeable pedestal for a globe in accordance with the present invention; and,