This is my Master of the forge. The conversion beamer is made of some strange, random mechanical bits I found, with some modified eldar cannon bits attached to it. One of the barrels is made of pure sprue debris. The thick "glove" is half an orc power claw, it sort of looked techmarineish with only one cutting thingy left on it. Since the cannon is quite big, I used a grey knight terminator for armour, to make it look more believable, even though it's just an artificier armour. Shoulders are black templar terminator shoulder pads. It's a regular power axe, just a bit longer. If I had a techmarine head, I might have replaced the grey knight's, but I didn't have one, so this will have to do.
Feel free to comment!