2 pkg. unsweetened cherry Kool-Aid
1 (6 oz.) can frozen orange juice
1 (6 oz.) can frozen lemonade
3 oz. fresh lemon juice
2 c. sugar
2 1/2 qt. water
3 c. vodka
2 pkg. frozen strawberries
7-Up

Puree strawberries in a blender. Mix all ingredients, except 7-Up, together in an ice cream pail and freeze. When ready to serve, fill glasses 3/4 full of slush and fill rest of glass with 7-Up.