Mix equal parts of flour, salt and water.
I usually use 2 cups of each.
Beat out lumps with an electric mixer.
Pour into plastic squeeze bottles such as used
for ketchup, mustard, or squeeze parquay.
Food coloring or tempra paint may be added for desired color.
Mix well. Usually the easiest way to accomplish this
is to funnel it into a bottle to 3/4 full
and then add color and shake well.
Squeeze onto heavy cardborad, construction paper, or posterboard.
The salt gives the design a glistening quality when dry.