Place hardboiled eggs in a bowl and pour vinegar over top. Soak for 10 minutes, then take them out and dry off. Set aside.
Spread whipped topping evenly in a large baking dish.
Add drops of food coloring in lines across the whipped topping (one line per color).
Lightly swirl the colors with a knife to create a marble effect, don't overmix.
Place the eggs in the whipped topping.
Use a spatula to gently cover the eggs completely.
Place baking dish with eggs in the refrigerator for 20 minutes.
Remove eggs and rinse off whipped topping under cool water.
Let eggs dry completely.
Optional: Use a pastry brush to lightly dust eggs with silver edible luster dust for a soft shimmer finish.