This is the start of a Stumble Gun for my Blood Pact.
For those of you who don't know, it's a terror weapon unleashed by the Archenemy in the Gaunts Ghost book His Last Command.
Essentially they're spheres of metal and guns that are literally rolled at the enemy, bouncing around randomly, crushing and killing all in their path with both their weight and energy weapons studded across its surface.
I loved the idea of these balls of destruction the moment i saw them and i've wanted to build one for ages. I'm still not sure what i'm going to use it as yet, but i'll work that out later.
Hopefully i'll be able to show you more in the next couple of days