Here is an American Civil War ironclad which I made more than 20 years ago. Its made from scrap wood and a plastic tube for the funnel. You can see two 28mm minis with it to give you an idea of the size. There are three images here, one a fancy photoshopped image with 'water' the other a straight image and the third an image of a visit by the ladies to the ship. I am proud of this old fellah, it is homemade with no commercial products involved, much like how many of the originals were put together.
Some of my Sikh Wars era minis. These ones are all East India Company Troops. 1st Bengal European Light Infantry, two Madras Native infantry Battalions, a Colonel and the Bengal Horse Artillery. All are 28mm minis and all Foundry or conversions of Foundry.