1.Preheat oven to 180°C. Grease cake pan; line base with baking paper.
2.Make cakes according to directions on packets. Spread mixture into pan; bake about 50 minutes. Stand cake in pan 5 minutes before turning, top-side up, onto a wire rack to cool.
3.Meanwhile, make butter cream; beat butter until white as possible, gradually beat in half the sifted icing sugar then milk, then remaining icing sugar. Beat until smooth.
4.Using a serrated knife, level cake top. Secure cake to the cake board with a little butter cream.
5.Tint butter cream green; spread over top and sides of cake.
6.Cut snakes on a diagonal at different lengths. Cut green sections from Killer Python (you will need three pieces). Cut ‘V’ shapes from teeth to make pointy teeth.
7.Position lollies on cake to form a fire-breathing dragon, as pictured.
Milk bottles, Killer Pythons, snakes, teeth and racing cars can be found in packets of party mix.Note