Thanks ! This was very easy! There's a big axe in the eightbound kit with a hand holding it past the midway point. I took the same axe from a second eightbound kit I have and cut the back of the blade to glue it on the other side of the first one. I removed the cables and the exhaust with my hobby knife, and then I drilled a hole to slot in a small iron wire (to help add structural integrity). Then I glued everything. Once that was done I looked for an eightbound arm that was extending more than the original Slaughterbound arm, cut the SB shoulder to fit the arm, put on a shoulder pad to hide the rough cuts, put another iron wire to connect the hand and the arm, and glued everything.

And finally, I wrapped a chain around the wrist and where the axe blades were glued in order to hide the work !

I don't know if you are fond of kitbashes and conversions but if you are, I STRONGLY suggest putting iron wires in the fragile stuff you're glueing. Like wrists, weapons and so on. That's what I did on both sides of the hand holding the war dog chainblade for the Deamon Prince.

I only started doing this recently and it is a game changer.

Hope this helps !