Pina Coladas

1 (8 ounce) can crushed pineapple, undrained
1 (8 1/2 ounce) can cream of coconut
1 large banana, sliced
1/2 cup nonfat dry milk powder
1/4 cup water
1/4 cup light rum
1 teaspoon lemon juice
1 tablespoon sugar
15 ice cubes

Combine all ingredients in a blender and blend until the ice is finely crushed.