100g/3½oz ready-to-roll red fondant icing
tube black writing icing
icing sugar, for dusting (optional)
½ tsp fine salt
350g/12oz mini marshmallows (or normal marshmallows, cut into small pieces), white or mixed colours
100g/3½oz unsalted butter or dairy-free margarine, cut into cubes if using butter, plus extra for dabbing