Exercise Machine Strap

FIG. 1 is a front-right perspective view of an exercise machine strap illustrating my ornamental design; FIG. 2 is a rear-right perspective view thereof; FIG. 3 is a front-left perspective view thereof; FIG. 4 is a rear-left perspective view thereof; FIG. 5 is a front elevation view thereof; FIG. 6 is a rear elevation view thereof; FIG. 7 is a left-side elevation view thereof; FIG. 8 is a right-side elevation view thereof; FIG. 9 is a top plan view thereof; FIG. 10 is a bottom plan view thereof; and, FIG. 11 is another front-right view of an exercise machine strap shown with a symbolic break in its length. FIG. 11 is shown with a symbolic break in the exercise machine strap. The break lines and the appearance of any portion of the exercise machine strap between the break lines form no part of the claimed design. Any portions of the features depicted in broken lines illustrate portions of the exercise machine strap and form no part of the claimed design.