Here’s my tutorial for making Yard lights for model railways, these are for O gauge but the principle is the same for any scale, just select a smaller or larger post and LED.
This is something that doesn’t take long and is filmed in real time, so it’s less than an hour per light, so something to do whilst in Coronavirus pandemic lockdown
These work out cheaper than buying yard lights and can be customised to any light on stations yards or depots, even street lights depending on your location
We also have a look at the Custom Layout Signs supplied to me by Jason of custom layout signs