regular white glue
clear transparency film sheet
Mix the desired amount of food color
directly into the glue bottle and mix well.
Place the pattern under the film sheet
and trace over it with a continuous bead of glue.
Fill in the pattern completely.
Let it dry for 12 hours or more.
Peel your work off the film sheet
and place on any glass surface.
(Source: "Recipes for Fun" - handmade booklet purchased from thrift store)