Unwrap your marshmallow treat bars and place them on a sheet of parchment paper. Set aside.
Sift the powdered sugar into a large bowl. Add the next 5 ingredients to the bowl and carefully whisk until well combined and you have a bright purple icing.
Carefully spoon the icing on top of each marshmallow treat and spread into he desired design.
Add sprinkles to the tops of each treat. Then add white chocolate chips for eyes.
To add a dark center to each eye: melt the milk chocolate chips and using a toothpick, gently dip the toothpick into the melted chocolate and draw a circle int he center of each white chocolate chip.
The nutrition facts presented here are estimates only. The brands you use and product types chosen can change the nutritional information presented. To obtain the most accurate nutritional information, you should calculate the nutritional information with the actual ingredients you use.