I need some advice from experienced cake decorators. My son has his heart set on a a lifeboat birthday cake, he is mad about lifeboats. His mum (moi) is not the world's best cake decorator, and the professional ones are pricey. I really want to try to do it myself. I am ok with the basic boat shaping, and covering but any tips on the details like the rails? Any advice on any aspect of this would be so appreciated.