...this is a gun. Geoshift debuted his most ambitious (and bulky) Warhammer minifig to date. Yes, the armor and weapons seem large relative to the fig...but that's Warhammer, man. Beautiful paint and great composition.
I am still convinced that there is an opportunity for someone to craft a variety of pieces, similar to Warhammer bitz, that can be used this way in customization work. With Shapeways lowering barriers to entry, perhaps we'll see some soon.
You can see more of Geoshift's creation on Flickr.