Now for the fun part – piping on the fur!
Top tip: you can use just the green frosting to cover the cake in fur or you can mix it up with different colours. The most important thing is that the frosting is stiff enough to hold its’ shape as you pipe it onto the sides of the cake.
Fit a piping bag with the ‘grass’ piping nozzle and load up the bag with your desired colour of frosting.
Starting at the base, hold the nozzle at a 45° angle to the side of the cake and squeeze the bag to extrude the icing until it adheres to the cake. Pull away slowly to leave a small patch of ‘fur’.
Continue to work in this way until the remainder of the green area is covered, including the sides and top, right up to the edges of the fault line.