So the group I play Dark Heresy with is sitting around playing and i notice for the first time that in my starting equipment I get a metal staff. We had been discussing before my elec-too use and I asked my buddy who was GM-ing if, since i can channel electricity through the grafts on my hands, I could turn that staff into a shock weapon.
He looked at me for a minute and said, "... you know, yeah. I don't see why not." So I mono-ed it and now i have a 1d10 (i think) shock weapon with 2 penetration stashed away in my equipment.
So if you're a tech-priest with a decent Weapon skill, here's a shock weapon that only costs as much as it takes to mono it.