Maggie Beer does a fabulous non-alcoholic sparkling, it's a gorgeous pink colour, called Sparkling Ruby Cabernet.

I've had it straight up or as a spritzer with soda and mint leaves, it's da bomb!

You could experiment with it as a punch or just do something really simple like a ball or two of berry sorbet (I use a melon-baller to do small scoops), a splash of soda and then fill it up with the Ruby Cabernet.