You do realise that the people who made those props were very skilled craftsmen, a number of whom went on to win major awards, using for the most part what was, for the time, state of the art materials and techniques? To hear some people talk, it was all thrown together out of bits found in a skip by amateurs who couldn't make the grade to present Blue Peter.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'