The ornamental design for a decorativechain, as shown and described.
FIG. 1 is a perspective view of the decorative chain;
FIG. 2 is a top view, the bottom view being a mirror image thereof.
FIG. 3 is a front view, the rear view being a mirror image thereof.
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a perspective view of the decorative chain illustrating how additional links may be added to comprise a chain of indeterminate length.
FIG. 7 is a perspective view of the decorative chain illustrating how the chain the invention may be used in connection with a handbag; and,
FIG. 8 is a perspective view of the decorative chain illustrating how the chain of the invention may be used as a bracelet or necklace.
The broken line showing of additional links and handbag is included for the purpose of illustrating environment and forms no part of the claimed purpose of illustrating environment and forms no part of the claimed design.