Most gaming groups tend to accumulate these over months or years of play.
Many editions and supplements of Mekton have featured mecha pilots with similar names asking their (also similarly named) techs to build them either six-armed Humongous Mecha (because they "got a very good deal in a half dozen beam swords") and/or smaller infiltration units designed to look like a Coke vending machine ("It even gives change!"). They are also invariably hit on the head with a large wrench for their efforts.
Bjorn the Fell-Handed is the oldest Space Marine in existence, and remembers walking beside the Emperor and his Primarch ten thousand years ago. His chapter keeps him in stasis for his own safety, waking him up when they need spiritual guidance. Fans quickly noticed this is basically the same as "waking grandpa up when they want to hear stories".