War Hammer

I appreciate their commitment to awesomeness in the great dwarf tradition, but 'hammer' training?
I have no idea what the hypertrophic value is (if any), but as someone who did labor work for extra cash in his younger years, I can tell you that beating anything with a sledgehammer is a helluva way to let off steam and you know ... good enough for Gimli etc ...
When I'm in a mood like that, I just grab my maul and chop some wood. Wood chopping can be a lot of fun with a maul.