To make the fruit salad: mix the pineapple pieces, mango or papaya, carambola, kumquats or kiwi fruit, sugar and rum in a bowl. Cover and leave to macerate in the refrigerator for 1-2 hours. Pile the fruit salad into the pineapple halves and chill.
Make the Italian meringue. Heat the oven to 375°F/190°C. Cover the fruit in each pineapple shell with ice cream, t