you could even take that crowbar and chop the curved end off, weld on a "head" (possibly made 1/4" plate or leaf spring) and you're good to go.
the straight end of the crowbar is the only part really good for prying anyway.
on a slight side note; has anyone evar actually tried to pry open a locked door? not so easy. i'd rather use a sledge hammer or a shotgun.
the nice thing about purpose built weapon is that you know it'll work. many of the alteratives i've seen mentioned, from bats to sledgehammers are tools. they are tools pressed into service as weapons. such misuse will eventually lead to the failure of the tool.
I already found a waterjet comany who can cut me those flanges. I want 6 around the hitch ball, 4 is easy to weld, 6...is hard as I want it perfectly even.
For those who are wandering what this monstrousity is. Thats a 3/4 inch steel rod with thread at the end to fit the coupling, and a trailer hitch ball for that crushing weight. Welded to it will be the flanges to make an authentic Flanged Mace. Either two handed or one handed, it weights just under 14 lb right now, putting some sledgehammers to shame, and unlike a sledgehammer the handle will never break or bend.
I was thinking of threading the other end and placing another coupling so I could fit it with a piercing end. Mace with interchangeable parts! Where else can you find one?
Yours for a low price of $299.95!
Heh, Im just joking. :)
Check out some of these, theyre replicas but damn good ones, look sturdy too.