What I have used so far for Valentine display

To make valentine bags:  Plastic hearts, narrow ribbon, glue, sequins.
Cut length if ribbon (measure doll arm with ribbon draped over to where you want the box to hang).  Glue ribbon to each side of heart box.  Use hot glue if you prefer.  Place sequin over glue to finish off.

Hang on your dolls arm.
                                                                 Cut out Valentines.  How simple is that!