In a large pot, heat butter over medium heat, until melted.
Add miniature marshmallows, and heat, stirring, until marshmallows are melted.
Remove from the heat and stir in cereal, mixing until everything is evenly incorporated..
Take a 9x13 baking dish and spray with non-stick spray.
Pour krispies mixture into the 9x13 dish, pressing down into the pan evenly.
Give the krispies about an hour to set.
Remove from the pan and cut into 15 squares.
In a microwave safe bowl, melt candy melts by microwaving on 30 second intervals.
Pour the melted candy into a piping bag.
Snip off the tip and drizzle the red candy over the krispie treats. You won’t use all of the candy, since there are two more colors to add.
Repeat for the blue and white candy melts.
Sprinkle with red white and blue jimmies sprinkles.
Allow the candy to set and enjoy.