I have this habit of watching SF movies and TV shows, especially the ones from the 70's and 80's and being able to spot kit parts used on props and models and knowing what kit they're from. The other evening while watching 2001: A Space Odyssey during the scene when Hal uses the EVA pod to kill Frank Poole I spotted on the front of the pod, just below Hal's eye a kit part I knew straight away.
2001: A Space Odyssey along with the Gerry Anderson shows Thunderbirds and Captain Scarlet and the Mysterons were the first type of shows to use off the shelf kit parts for detailing of the vehicles and props etc... They coined the term 'Wiggets' for this, later to become known as 'Greebles' by the crew at ILM when building the miniatures for Star Wars in the mid 70's.
The part I spotted was from a 'Prestwin-Twin-Silo-Cement' Kit made by a company called Dapol. I picked one of these up for parts from the Monk Bar Model Shop in York here in the UK a few years ago. So if they were using this kit during the production of 2001: A Space Odyssey in the mid 60's then the kit is over 40 years old at least
So I'm not quite train spotting but I am spotting parts of trains, and it a pretty sad hobby, but it keeps me off the streets !