What do you need?

For the sponge cakes: 200 g sugar, 3 eggs, 90 g sunflower oil, one spoonful of vanilla paste, one packet of baking powder, 280 g flour, 200 g milk and one spoonful of lemon juice. For the filling: strawberry jam, 300 g whipping cream and 300 g dark chocolate for melting. To decorate: white fondant to cover the cake, different colours of fondant to make a skateboard and a ramp, and icing pens to paint graffiti around the cake.