Dissolve sugar in milk and cream. Add fruit juices and bananas and freeze in ice cream freezer. Remove dasher and pack for easy serving. Let ripen up to 2 hours if desired. For other fruit flavors, omit or reduce banana, then add a 16- to 20-ounce can crushed pineapple, or 3 cups apricot puree, or crushed peaches, or 2 cups crushed strawberries or raspberries. If sweetened frozen fruits are used, reduce sugar by about 1 cup (taste and adjust sweetness). If fresh fruit other than bananas is used, sprinkle half of sugar on crushed fruit first and allow standing a few minutes before adding rest of sugar to milk-cream. (This is to avoid icy chunks of frozen fruit in the ice cream.)