FIG. 1 is a perspective view of a key chain.
FIG. 2 is a front elevation view thereof; the rear elevation view is a mirror image thereof.
FIG. 3 is a side elevation view thereof.
FIG. 4 is the opposite side elevation view thereof.
FIG. 5 is a bottom plan view thereof; and,
FIG. 6 is top plan view thereof.
The broken lines do not form part of the claimed design.