The ornamental design for an extensionstructure for a liquid and lotion applicator, as shown and described.
FIG. 1 is a perspective view of an extension structure for a liquid and lotion applicator showing my new design;
FIG. 2 is a fragmentary perspective view thereof shown with a portion of the extension structure for a liquid and lotion applicator broken away for clarity of illustration;
FIG. 3 illustrates a longitudinal sectional view thereof; and,