There’s some sort of rule that requires GW to make an absolute mess of licensing(both greenlighting bad projects and missing opportunities); but this seems like one place where a Cult Mechanicus makeover and selection of samples suitable for particularly grim and superstitious industrial applications would work brilliantly.
Cog-skull, couple of purity seals; high gothic labels for the control runes; case that looks like it was stamped out on tooling that hasn’t been replaced in 15,000 years because nobody knows how anymore…