Just my opinion but I wouldn't go with green on LOTR . For the actual machine in question there's plenty of green going on elsewhere with the Army of the Dead and the green GI . I think green hardware would just "blend in" too much ( if that makes sense ) . That and the fact that green will clash badly with the cabinet artwork . My first choice would be to go plated gold / brass but if that's not an option how about a really dark orange ? Might look OK and blend in the Fires of Mordor .