This update is rather late, but last month I took my portable layout along to my daughter’s Child Care Centre for the children to see the trains.
It still isn’t anywhere near finished, but it was operational, and the children seemed to enjoy the day.
I also had some tress and buildings ready to put on the modules, so I asked the children to help me decide where they should go.
The hill and tunnel seemed to be a big hit with several of the children. I have added lights (on a switch) in the tunnel so if I’m operating my video system, the section through the tunnel can be lit up, or completely dark. The LEDs for the tunnel lights get their power from the track voltage via a rectifier and 5V regulator, so they can be lit without worrying about a separate supply for the lights.