Witch's Brew

Witch's Brew 1 (6 ounce) packages lime gelatin 2 cups boiling water 3 cups chilled pineapple juice 1 (2 liter) bottles chilled lemon-lime flavored soda or 1 (2 liter) bottles ginger ale 2 cups chilled vodka (optional) Pour the gelatin mix into a large bowl. Slowly stir in the boiling water. Stir at least 2 minutes, until the gelatin is completely dissolved. Stir in the pineapple juice, the entire 2 liter of soda and the vodka. Let cool to room temperature.