As you know SpaceX was the large Triang space toy line. Essentially SpaceX was a space exploration mission with Tractors, Helicopters, Booster Rockets and Nuclear Pulses.
The cleaning division of the crew are known as KleeneX, with sub-divisions 2 Ply and Mansize. KleeneX basically keeps SpaceX's nose clean.
The clockwatching team are called TimeX, whose job it was to basically wind things up and call everyone in for tea.
T.ReX are the old dinosaurs who still zoom around in clapped out Plezzher Croozers bugging the young guns down at the airfield.
FedeX are the postmen of the operation delivering the vast crews' Viz comics and stuff off Ebay. TimeX love to wind up FedeX.
There are lots more X sections of SpaceX readers. Can you name any?