I claim the ornamental design for an appendage wallet, as shown.
FIG. 1 is an overhead plan view of a first side of an appendage wallet in an unwrapped configuration.
FIG. 2 is an overhead plan view of a second side view thereof in the unwrapped configuration, showing my new design in an environment that includes a human appendage on which the appendage wallet is disposed.
FIG. 3 is a perspective view of thereof in a wrapped configuration; and,
FIG. 4 is a perspective view of thereof in the wrapped configuration.
The broken lines are for the purposes of illustrating portions of the claimed article that form no part of the claimed design.