Latest Purchase - Not Quite Advance :)

Now that's a good reason for me to go looking for some. You might want to think about the Takara way of using these switches though. What they do is have the front car hinged at the nose, this then allows the rear of the car to move up and down (there's a very small spring on the inside rear of the car cover). So what you do with their trains is you turn the battery switch on that is located on the bottom of the middle car, put the train on the track, then simply depress lightly on the rear of the front car and off she goes. Then when you want to switch her off you just again press lightly on the rear of the car and it stops.

Personally I think this is a very elegant solution to the on/off issue and beats the normal throw the switch and put on the track or hold and throw the switch hands down

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You could maybe use these, they are not on/off, but rather multi-positional switches, but you could use a small screwdriver to switch say from 0 to 1 to turn on a current. In fact if you fitted multiple functions to a single wagon or loco this could be a good way to use one or more functions individually or combined. Further thought, combine it with an array of resistors or something and you could adjust light levels

Surface Mount Rotary Switch