Place a sheet of paper over the rubbing plate and rub with the side of a crayon to reveal the pattern underneath. colour in the details with markers or coloured pencils. Fill with or press into modeling clay. Great with papier m?ch?! Make sun catchers using white glue and food colour. Simply fill a rubbing plate and let dry. Peel the resulting mold off and you are done. 16 ubbing plates, 4? x 5.25? and teaching guide.