I made my cakes a week before and froze. The icing is the marshmallow icing that you melt the marshmallows in the microwave for 40 seconds until they are puffy. You can add your color now or after you add the icing sugar. Add equal parts of mellows to icing sugar. Kneed as you would fondant icing.
I coated the cake in butter icing before I put on the marshmallow icing. I had just as much fun making the cake as what I did eating it. My 2 year old was so excited she was having a Night Garden cake. It was the first time I had used the icing and everyone was impressed with how it turned out.
I had a cake board to use but when I was icing the cake on the turntable, I placed the grass onto the turntable as well and I wasn’t able to take it off. So I had to use the cake board as a lower layer with the name on it.
I used 3 types of icing here, butter icing for the grass and coating of the cake. Marshmallow icing as a fondant, and white icing you get in a packet from the local store. I never saw fondant icing written on the box of white icing.