I claim the ornamental design for a mobile deck used for leisure or entertainment, as shown and described.
FIG. 1 is an exploded perspective view of a mobile deck used for leisure or entertainment, showing a removable railing separated from a mobile deck of my new design;
FIG. 2 is a right-side elevational view thereof, the left-side elevational view being a mirror image thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a front elevational view thereof; and,
FIG. 5 is a rear elevational view thereof.
The broken line showing of the mobile home in FIG. 1 illustrates the unclaimed environment of the claimed design. All other broken lines in FIGS. 1-5 illustrate portions of the mobile deck used for leisure or entertainment that form no part of the claimed design.