Heat sugar and water over medium high heat, until it turns into a clear syrup and sugar has dissolved, stirring often. Add food coloring and stir until a solid color has formed.
Pour over popcorn in a large bowl and mix it until all of the popcorn is coated.
Add the cookie into the bowl.
Melt butter over low heat, then add marshmallows, and continue cooking until marshmallows are melted.
Pour over popcorn and cookies. Mix well, and using gloves, form into 12 balls.
Add 2 candy eyeballs to each cookie.