The ornamental design for a popcorndispenser, substantially as shown and described.
FIG. 1 is a front perspective view of a popcorn dispenser showing my new
design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a rear side elevation view thereof, the front side elevation
being similar in all respects other than the opening in the topmost
portion; and
FIG. 5 is a side elevation thereof, the opposite side being the same in
appearance.