The ornamental design for a combinationhandsanitizer and advertising display, as shown and described.
FIG. 1 is a top perspective view of a combination hand sanitizer and advertising display showing our design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5. is a left side view thereof;
FIG. 6. is a right side view thereof;
FIG. 7. is a top plan view thereof; and,
FIG. 8. is a bottom plan view thereof.
The broken lines shown in the figures represent portions of the combination hand sanitizer and advertising display that form no part of the claimed design.