Using a stand mixer, combine all ingredients and mix on medium speed.
Mix until you see stiffed peaks in your frosting.
Once the Whipped cream is made, divide equally into 2 bowls
Add 1 drop of blue food coloring into the first bowl.
Stir well to mix the color throughout all of the frosting.
Leave the rest of the whipped cream white.
Put a large tip in a large pastry bag.
Scoop the blue whipped cream into the pastry bag on one side of the pastry bag.
Scoop the white frosting into the other side of the pastry bag.
Squeeze the open end of the pastry bag to push the whipped cream to the tip.
Continue to push the Whipped cream until the it comes out of the tip.
Squeeze a large dollop of whipped cream onto the center of the cup.
Sprinkle blue sprinkles of the whipped cream
Place the mermaid tail and seashell on the whipped cream.
Return to the refrigerator until ready to serve.