To this end I'm build my own steam engine...!
Let's start with a boiler made from an old aerosol can...

Then I'll need something to boil the water in the boiler...

Does it work..?

Yes it works...
Now let's see those components together...

Hmmmm... Nice..!
Now, how about some cylinders to turn that steam into motion...?
Something like these perhaps..?

Good...
Now I'm going to put the whole lot in a cupboard to let them 'mature' for a couple of years...