We currently have the purple cube and the gold cube found in the convergence gallery. However I’d love to see the Red Cube and the Blue Cube and if at all possible the deactivated cube from Sky Fire before it was turned into the blue cube.
Alternatively, the ability to just go upto the cube and customise it’s colour would also be pretty awesome. Then any colour of cube would be available for use.
Or add a cube device that you can use to change the colour and the way it behaves when shot or walked into etc