Step 3: The tanks
You will need tanks for your dock if you want it to look like a genuine Steampunk machine. As I didn't have any cans that were the correct size for what I wanted I thought it would be quicker to just turn some cylinders on my lathe. For the smaller tank I was thinking you could use a kinder surprise case (the thing inside the yummy chocolate with the toy inside of it). If you want your boiler to smoke like mine then make sure the large tank is hollowed out or the bottom cut off.