You can use mother dairy cream , it is very capable of doing light icing on cakes
You can try a cream cheese frosting instead. Here's the recipe: You need: 1. 150g cream cheese 2. Half cup icing sugar 3. Half cup butter 4. One-fourth cup milk 5. 1 tsp vanilla extract Method: 1. Place the cream cheese along with butter into a mixing bowl. Whizz them with a paddle attached whisk in low speed until well combined. 2. Tip in icing sugar and beat for another minute. Now add vanilla extract and milk/cream, mix well. Check for consistency. Add in more icing sugar if you are looking for a thicker consistency. Hope you like it!