I have been scrabbling around for a decent idea for this, then looking through the excellent entries posted up on here what I need to do is add water to electricity.
You will have to bear with me for a few days for this to start for seasonal reasons but it will contain:
-A small boat
-A length of London Underground track
-If I have time then either some A or S stock (scratch built to keep cost down).
The aim is to do it all from consumables and the bits box.
Budget will be £10.
Edited by outcastjack, 30 April 2018 - 19:10 .