Make A Toy Boat How Do I Make A Simple Steam Engine For A Toy Boat?

How do i make a simple steam engine for a toy boat? - make a toy boat

I am a steam engine for a model boat made of wood and a foot long. I want the engine must be as small as I materials may preferably a house. I would like detailed instructions on how not to write for a movie.
Images to be useful.

Thank you.