Officially no longer frightening

So we took The Offspring to the National Space Centre in Leicester, only to find it had been taken over by some sort of Doctor Who convention:

Not at all worried by the sudden appearance of our screaming, heavily-armed, metal-clad mutant overlords...

This, however, was slightly more unsettling in a Strangelovian sort of way...

Survivor of the Blue Streak medium-range ballistic missile project.