This is something my father makes every Independence Day, which he calls "red white and blue". It consists of layers of strawberries and blueberries suspended in whipped cream. Generally we add something to the whipped cream--which doesn't work if it comes from the can; you have to whip it yourself--to make it taste exciting (was it vanilla? brandy? I have no idea), and soak the strawberries in brandy before putting it together.
It sounds very alcoholic, but the total amount in it is less than half a shot for each serving. I have no idea where my father got the idea for it, but we've been making it every Fourth for a number of years now.