Pour heavy whipping cream and condensed milk in a mixing bowl. Whisk well until well combined.
In large square container or tray, arrange graham crackers. Spread and cover them with cream and top with fruit cocktail; reserve the other half can of fruit cocktail for another layer. Repeat the procedure according to layer preferences.
For additional toppings, dissolved gelatin powder in cold water. Simmer on medium heat, and add the fruit cocktail syrup. Stir occasionally until mixture boils. Let it cool for a few minutes in the fridge until start to thickens. This step is optional, you can make this without gelatin.
Pour the gelatin mixture over the graham crackers and fruit. Put in fridge, chill and serve. Enjoy!