Make the cranberry simple syrup. In a medium saucepan, bring cranberries, sugar and water to a simmer over medium heat. Reduce heat to medium low and cook until cranberries are tender but haven’t burst, about 10 minutes. Let cool, strain cranberries out and store simple syrup until ready to use in the fridge.
For each drink, place a few dried cranberries in a champagne flute. Add ½ cup sparkling beverage of choice and then add about 1 tablespoon simple syrup. After a minute the cranberries will float up and there will be a lava lamp effect.