|A communications console.|
(click on image to enlarge)
The main piece (the purple and silver part) is a stripped down body of a Transformers Constructicon (mixmaster, I think) that I had when I was a kid.
The top section is most of the Imperial Guard vox-caster from the Apocalypse Command sprue (the antenna has been cut off).
The "feet" are cut down Space Marine teleport homers. I used the top part of the homer as sirens for my Adeptus Arbites (counts-as) Rhinos.
The control panel is a piece I bought from a 3D print on demand store that I discussed here.
On the back is the antenna I removed from the IG vox-caster and a bit that came with the Imperial Bastion kit.