In a large mixing bowl, pour in the heavy cream and whisk vigorously with a hand mixer or stand mixer on medium speed until stiff peaks form, about 3–5 minutes.

In a separate bowl, mix the sweetened condensed milk and vanilla extract until well blended.

Gently fold the whipped cream into the sweetened condensed milk mixture using a rubber spatula.

Divide the fluffy ice cream base into three separate bowls. Add a few drops of gel food coloring to each bowl, choosing pink, purple, and teal.

Spoon alternating dollops of the colored mixtures into a loaf pan. Using a butter knife, gently swirl the colors together.

Sprinkle edible glitter or colorful sprinkles on top for an extra magical touch.

Cover the loaf pan with plastic wrap or a lid, then place it in the freezer. Allow the Mermaid Ice Cream to freeze for at least 6 hours or until firm.