Hi;
Some years back, I did an airship in steam punk for a friend. Funniest thing I ever saw. I used the steam engine parts from the Rocket Train engine and then did the Airbag from a mold I made over one of those long balloons half inflated. Then, burst the balloon and poured resin in it and let it set, Broke the mold and Viol'a a Steam punk airship.You should seen the props. Plastic Daisy petals!