The Mermaid Mule is a refreshing and vibrant cocktail that combines the flavors of tropical fruits and the zing of ginger beer. This colorful drink is perfect for summer parties or beach get-togethers. The combination of pineapple juice, lime juice, and blue curacao creates a beautiful turquoise hue that resembles the ocean. Serve it over ice in a copper mug and garnish with a pineapple wedge and a sprig of mint for a truly enchanting drink.