The ornamental design for a ribbon-wrapped wristlet base, as shown and described.
FIG. 1 is a front perspective view of a ribbon-wrapped wristlet base for the mounting of a floral arrangement thereon shown on a wrist drawn in broken lines;
FIG. 2 is a rear perspective view of FIG. 1 shown on a wrist drawn in broken lines;
FIG. 3 is a front elevational view of FIG. 1;
FIG. 4 is a rear elevational view of FIG. 2;
FIG. 5 is a top plan view of FIG. 3, the bottom plan view not being shown as this view is the mirror image of the top view;
FIG. 6 is a front elevational view of FIG. 3 shown with the ribbon-wrapped wristlet base fully extended; and,
FIG. 7 is a rear elevational view of FIG. 6.
The broken line showing of a human hand is included for the purpose of illustrating environment and forms no part of the claimed design.