Silly Putty
["4 oz. Elmer's school glue (this brand works best)", "1/2 c. liquid starch", "food coloring"]
["Mix ingredients; stir with a spoon and then knead with fingers, until all the liquid starch is absorbed.", "Store in a covered container. If mixture is sticky, this indicates too much glue.", "A hard mixture indicates too much starch."]
["liquid starch", "food coloring"]