Dead-blow Hammer

I wanted a large dead-blow hammer. So here is one.

Since it is made in parts, structural integrity was the main issue I had, which lead me to give up on doing an entirely printable thingie (and sacrifice my pride).

So, hardware is required...

1x threaded rod (1/4in, or 6-7mm)
1x cap nut
(and a tap n' die set to match)

2x shotgun shells (target loads, or small game, #6 is what I had)
(and boxcutter to open them up FROM THE TOP as far from the brass as possible)



Optional:
Hockey tape, or rubberizing coat for handle.