I wanted to try them on some wiring mods like coach lighting. I think it would be much easier to reach under a coach and just push an on/off button that to reach under and and move a slide switch. Plus I also wanted to try the button micro switches on either the front/rear of and engine or a coach and maybe even see how a small button switch would look on a roof seeing as you would only need to drill a proper size hole for it with no filing and fidgeting. I also wanted to try them on building lighting. I hope you find some for us.
Thats certainly a different idea. I also just thought of somewhere else I could use one right now. I was thinking of putting a flickering (not flashing) LED light in a small projector building for one of my current custom scenery items I am working on, a Drive In Theater. A button cell and one of these micro push button switches would be perfect to have all the workings contained inside this little building. A couple years ago I bought a 50 bulk purchase of these for next to nothing from China thinking they were regular on/off switches only to discover they were the momentary on switches. I ended up throwing them away which I was sorry for as I thought later they would work great as a activation switch inside a blue track that would operate trackside lights as a train passed by. I got the idea after watching these videos from Panda Neko. There is also a video out there that shows someone installing the smaller momentary buttons in a blue track but I can't find that. All it took was the appropriate sized round hole for the activation button as the height of these micro switches would easily fit within the rail underneath the track without any modification.
That is a pretty cool use of a momentary switch, however in those cases the switch is tied to a whole bunch of electronics to provide a timer and other functions to switch from one LED to another, flash them etc...
You could defintely use the momentary switches in the track though so that they activate something as a wheel rolls over it, a lot of the surface mount ones use very little force.
Happily collecting things all my life...
I figured that since the wheels would be almost constantly striking the button it would keep gates up until the wheels passed. The trick would be to find the button that that was the exact proper height to just protrud slightly through the bottom of the track where the wheels would strike it but not so high as to make the train bounce over it like in that video but they have many different heights I believe.
That welder card is pretty cool and would look good I bet inside a maintenance building or the like. Too bad they don't link to a video.
I've actually seen those welder cards in action at exhibitions etc... in exactly the way you mention, in an engine shed, car workshop, factory or similar. They are very realistic and exceptionally bright, even working in a fully lit room. Definitely adds an element of animation to a scene and not as massively expensive as you'd think...
Happily collecting things all my life...