I claim the ornamental design for a football helmet motif travel trailer body, as shown and described.
FIG. 1 is a right rear perspective partial view of a travel trailer body showing my design in a position of use with a see-through lift gate in an open position. The broken lines showing the wheels and a portion of the undercarriage in FIG. 1, and broken lines shown in other FIGS., illustrate environment and form no part of the claimed design;
FIG. 2 is a right rear perspective view of the travel trailer body shown in an alternate position of use with the see-through lift gate in a closed position;
FIG. 3 is a left side view of the travel trailer body with the see-through lift gate in a closed position;
FIG. 4 is a rear perspective view of the travel trailer body with the see-through lift gate in a closed position;
FIG. 5 is a rear perspective view of the travel trailer body with the see-through lift gate in an open position;
FIG. 6 is a front perspective view of the travel trailer body;
FIG. 7 is a top view of the travel trailer body with the see-through lift gate in a closed position;
FIG. 8 is a bottom view of the travel trailer body;
FIG. 9 is a right side view of the travel trailer body with the see-through lift gate in a closed position and with the travel trailer body in a position of use being towed by a vehicle;
FIG. 10 is a left side view of the travel trailer body with the see-through lift gate in an open position; and,
FIG. 11 is a rear section view of the travel trailer body illustrating an interior perspective of an access door of the travel trailer body without any fixtures or furnishing inside.