Preheat your oven to 350 degrees.
In a large bowl combine the brownie mix with the water, eggs and oil your particular box mix calls for.
Fill your mini muffin tin ¾ of the way up ( you may need to do this in batches)
Bake for 15 minutes or until a toothpick inserted in the middle comes out clean.
While the brownie cups are still warm use a teaspoon to press down the center to create a cup shape.
Set aside to cool completely.
To make the buttercream you need an electric hand mixer to whip up the butter.
Next add the powdered sugar slowly to the butter.
Add some blue food coloring.
Whip until all combined.
Add more blue food coloring if the color is not the shade you desire.
Spoon or pipe your buttercream into the brownie cups.
Top each one with a gummy ring candy.
Place a teddy graham into the middle of each candy ring.
Serve!