Beat the butter and sugar until frothy. Beat eggs under it. Mix the flour with baking powder and sift into the butter mixture. Stir in the milk until a creamy batter is formed. Depending on your taste, you can also fold in a pack of chocolate drops.
Preheat oven to 175 degrees.
Grease a loaf pan and pour in the batter. Bake for 30-35 minutes. Do the chopsticks test. After baking, remove from the mold and let cool down.
Place the cake on a large board and cut a V on one of the short sides with a sharp knife so that it looks like the bow of a ship. Place the two cut pieces on the stern of the boat and secure with toothpicks.
Melt the couverture in a water bath and paint the entire vessel with a brush. After the couverture has dried, the ship can with e.g., gummy bears, smarties and chocolate can be decorated. Icing from the tube is suitable as an adhesive.
Cut a triangle out of construction paper, stick it through a kebab skewer at the top and bottom and stick it on the boat. A Playmobil figure that can be attached with toothpicks is suitable as a captain.