Draw or print the initials on a white calling card.
Cut out carefully, then use a craft knife to remove the white areas. (Take care of fingers.)
Paint the interlace the desired color, then paint the initial in gold felt-tip pen or paint.
Make a bow in the satin ribbon (of matching color with the initials). Tie it with gold-colored string. (Leave enough string to be able to attach the ribbon to the napkin.)
Stick the initials to a surface of the ribbon.