In a large pitcher, muddle the lime juice, sugar and mint leaves until the leaves have broken down.

In a blender, combine the white rum, coconut rum, and coconut milk and pulse until smooth.

Pour the blended mixture over the mint/lime sugar mixture and stir to combine. Chill until ready to serve.

To serve, divide ice among glasses and fill halfway with the mojito mix. Top with sparkling water, mint, and pomegranate.