
The constructed mace has been around for quite a while - it's just there for comparative purposes. The flail is a fairly skilless operation - I cut up a chain into two parts with one thin-bladed cut in the middle of the sixth link from one end. The cut link was twisted slightly to create a gap and slid free from the other link. I then have two pieces of chain with a connector at one end, one with five links, and a longer one. The five link half has the connector placed on a wand and two links are super glued (gel style glue since that stays put much better) into the interior of a gear. Done.
I looked for a more elegant Lego solution rather than glue, but they ended up making the whole thing look clunky. Parts Masters may wish to resolve what I was too lazy to address late at night.
And I thought I'd throw in two round shields that have been asked about on another thread in the customized section (though that whole thread is correctly MOC, not Custom, despite its title). The shields are mounted on "beer taps" which the minifig also grips.
And the other half of the chain? The extra links can be cut out to make another flail, but instead I threaded the cut link through the hole on the end of a grappling hook.