I then glued various bits and pieces from my bits box to the sides of the wooden block. The squares are obviously warhammer fantasy battle citadel bases -- I seem to accumulate them given the chaos miniatures that I collect (and the zombies that I hacked up for Death Guard accentuation). The aerial is from a tank command kit that came with the apocalypse vindicator line breaker formation box; whilst the rhino doors were spares from a predator kit. The only other non-citadel bit was the circular metal thing you see on one side -- that is a lid from a gravy powder tin that was otherwise destined for household recycling.
I intend to paint it up black and add some detailing to the more blank portions of the block. I intend it to be some enigmatic kind of techno relay station ... not necessarily an imperial one. Having added a chaos tank bit to the upper edge of one side, I'm also thinking that it could easily double up as a chaos Doomsday Device as well.