Click here to learn how to make Frozen Jello "Ice" cubes! Ingredients needed: 2 env. (1/4 oz. each) KNOX Unflavored Gelatine, 2 Tbsp. sugar, 2 cups carbonated lemon-lime soda, 1-1/4 cups boiling water, 2 pkg. (3 oz. each) colored flavored Gelatin like Jello Blue Raspberry, and ¼ cup cold water.