Marshmallow Cake

My friend asked me on Saturday night if it was possible to make a cake for her daughter's birthday today? My son is going round there later, with some other friends, so I'm dropping round at the same time. 8" choc sponge cake with choc buttercream, covered with marzipan and sugarpaste, decorated with marshmallows and finished with a generous amount of pearl lustre spray! The mini marshmallows and lettering was painted with lustre.