Put a sugar cube in each of 6 Champagne glasses. Use a vegetable peeler to remove a few pieces of orange peel. Trace around the rim of each Champagne glass with the orange peel to give it that hint of orange. Halve the orange and squeeze some juice into each glass. Add a squeeze of lemon juice to each glass also.
Add 1-ounce of gin to each glass. Stir to blend and top with sparkling wine. Serve immediately. This can be made in a pitcher as well.