Your chances of finding this one by pure accident are almost zero, and yet, an eagle-eyed Imgur user by the name of 1Times spotted this incredibly well-hidden reference to the film Alien, purely by accident. Among the hundreds of junk items you can find while scavenging in the wasteland are Flux Sensors. Good for scrap and not much else, usually. However, printed on the bottom is a serial number - CM-88B 180924609 - that, as it turns out, is the registration and model number of the Nostromo ship in the first Alien film. Mental.