To
assemble, spoon one-third of the cake cubes into a 2 1/2- to 3-quart
trifle dish or clear glass bowl. Top with one-third of the pudding
mixture. Arrange some of the star-shaped strawberries against the sides
of the dish on top of the pudding mixture in dish, making a circle of
star-shaped berries. Fill in the center with some of the uncut sliced
strawberries. Top with a layer of one-third of the blueberries. Repeat
layers. Top with remaining cake and pudding mixture. Arrange remaining
blueberries in a 3 1/2-inch rectangle in one corner of the top. Arrange
remaining strawberry stars in rows, resembling stripes on a flag.