The ornamental design for a skull double-ended punching bag, as shown and described.
FIG. 1 is a top left perspective view of the skull double-ended punching bag showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a left side elevation view thereof, the right side elevation view of the claimed design being the mirror image thereof;
FIG. 4 is rear elevation view thereof;
FIG. 5 is an enlarged scale top left perspective view shown without the tether portions and broken line elements for ease of illustration;
FIG. 6 is a front elevation view thereof;
FIG. 7 is a rear elevation view thereof;
FIG. 8 is a left side elevation view thereof;
FIG. 9 is a top plan view thereof; and,
FIG. 10 is a bottom plan view thereof.
The broken lines showing the ceiling, floor, hook structures and end portions of the tether lines in FIGS. 1-4 are for illustrative purposes only, and form no part of the claimed invention.
Multi-headed, multi-abdomen, multi-armed apparatus for use with a slip and counter fight simulation/workout machine or stand alone device for fight simulation