Place a handful of crushed ice in the bottom of a blender. Add 3/4 punnet (about 6-9 ounces) of strawberries. Blend. Add a shot of all alcohols. Blend more. Add cream to desired consistency, and blend again. Pour into a cocktail glass, or several depending on size. Crumble chocolate flakes on top, and slices from the remaining strawberries. Add an umbrella, and serve.