2 cups pomegranate juice – to fill one ice tray
1/2 cup lime juice
2 tablespoons pomegranate juice
1/2 cup tequila (option)
Pour pomegranate juice into ice cubes trays. Freeze until solid (about 2 hours).
Pop the cubes from the tray. In a blender, combine lime juice, pomegranate juice, and tequila. Turn the blender to the highest speed, then gradually drop in all but 2 cubes, whirling until slushy.
Wet the top of the serving glass, and salt the rim. Place a pomegranate cube in the bottom of each glass. Pour margarita mixture in, and enjoy.