This DWAITAS thread noticed that the brass ball with blue and orange lipstick-looking points at the front of the Anomaly opener in Primeval is also the spinny thing on the Eleventh Doctor’s console in 2010...
And on the tray of alien artefacts in Torchwood... and a bomb attached to Lister in Red Dwarf...
(Correction: apparently it's not actually) by artist Chris Bathgate. (Which again raises the question of where it came from...)
So what might the other objects in the series be? They’re all quite abstract, but some suggest different shapes and sizes.
Take a look for yourselves before letting my ideas below the cut influence you...
Art deco blaster pistol?
Imperial flagship of the 77th Century?
Face of a robot gladiator?
Face of a mad robot gladiator?
Robot bank vault that leaves under its own power in the event of a robbery?
Central air system of a dystopian underground city?
Mask of the Arachnonaut?
Whatever they are, they look angry?
TARDIS joystick - I’m pretty sure that one did happen!