Easy volcano cake

Name: Easy volcano cake
Prep time: 1 h 15 min
Cook time: 1 h
Total time: 2 h 15 min
Cuisine: British
Ingredients: 300g butter, very soft; 350g caster sugar; 6 eggs; 300g self-raising flour; 2 tbsp milk; red paste food colouring; 100g apricot glaze or sieved apricot jam, warmed; 500g marzipan; 200g plain chocolate; about 250g assorted chocolate honeycomb chunks, chocolate raisins, Maltesers, caramel popcornetc, plus plastic dinosaurs, cake sparklers or fountains etc, to decorate