1 (6 ounce) can lemon-lime flavored carbonated beverage
2 liters lemon-lime liqueur
2 liters water
60 fluid ounces distilled white vinegar
2 oz. watermelon juice
2 liters syrup
1 (12 fluid ounce) can frozen orange juice concentrate, thawed
In a blender, combine lemon-lime soda, lemon-lime liqueur and water. Blend until smooth. Pour over ice in a 1/2 quart saucepan and keep cold (in refrigerator). Serve with lemon slices, lemonade shakes or lemon-lime flavored carbonated beverage.