Supplies: white school glue
liquid dish soap
paper with page protector
Instructions: On paper, use templates to draw desired shapes. Slip paper in page protecter. Mix a couple Tbsp of glue with 3-4 drops of liquid dish soap. Add food coloring. Paint or spoon a thick layer of glue onto page protecter to fill in the shapes. It's fun to mix the colors and swirl them around with a toothpick. Let dry. This takes at least 24 hours. If mixture runs past the border of the shapes you can use a pen and the template to re-draw the desired shape directly onto the window clings and cut them out with scissors. Stick to a clean window.
Completely dry after about 36 hours
Instructions found at: http://blogs.babble.com/kid-scoop/2012/01/28/small-kids-moment-valentines-day-window-art/?pid=3087#slideshow