Bring the coconut milk and sugar to a simmer over medium heat in a small saucepan. Simmer 1 minute, then remove from the heat and let cool. To quickly chill, add a of couple ice cubes. Fill a cocktail glass with ice. In a cocktail shaker, combine the tequila, coconut rum, orange liquor, lime juice, and coconut milk. Shake to mix. Strain into your prepared glass. Top with sugared cranberries and mint.