Playing around with some sound design in a patch and came up with a thing that makes some rudimentary train noises. Still needs a lot more work, but you can get the idea.

Trying to figure out how to make another more chirpy train whistle, make the chugga-chugga more adjustable and varying with speed, and perhaps add the clickety-clack noise the track itself would make once up to speed. Sticking to using free panels on this and not using samples, because that’s part of the fun.