I mentioned in another threadf that you can build a touch-control panel, using capacitive touch, very cheaply.

 What I have in mind is a small panel, 4 x 6 inches or so, with pennies and a single wire to  each functioning as capacvitive touch sensors, servos operating the turnouts (and, a factory gate, in my case) all working through an Arduino. I'm be using an Arduino Uno because it's what I have on hand, but you could use a Nano  as well.

The Bethlehem-Ares Railroad

(An Alternate History)