These were great fun to make.
Cut the cardboard into hearts, then paint with an ordinary household matt emulsion.
To distress, lightly sand the face and the edges with a fine glass paper.
Decorate with inked stamps, when dry apply a light coat of a matt water based varnish.
Finally take a length of jute or fine ribbon, make a loop and stitch by machine at the top/reverse of the heart
These little darlings were used to decorate the window of a chocolate shop on the Kings road London