Try this with some a little vodka or rum added.
473ml POM pomegranate juice
1/2 cup lime cordial
1/3 cup caster sugar
2 oranges, thinly sliced
1/2 cup pomegranate seeds
2 x 1.25L bottles soda water, chilled
4 cups crushed ice
1/2 cup fresh mint leaves
Place pomegranate juice, lime cordial and caster sugar in a large bowl, stir vigorously until sugar dissolves. Add oranges and pomegranate seeds. Chill until required.
Transfer to a large jug, or punch bowl. Or divide between two smaller jugs. Add chilled soda water, crushed ice and fresh mint leaves. Stir and serve immediately.