Well, I think the only practical way this works is to use a warhammer like a warhammer, with a sickle as a sidearm.
Like others said before there's not really an advantage for you to dual wield, and those two implements don't really complement one another in a way you wouldn't be served better by almost literally any other weapon combination lol. The only advantages you'd get from wielding a sickle over a dirk or something like that are already provided by the hook on your warhammer.
E: also I think it's worth pointing out that IRL warhammers look very different from the hammer and sickle hammer or fantasy BS warhammers; most are closer to polearms than the big fuck-off maul type weapons in Skyrim
Well, I think the only practical way this works is to use a warhammer like a warhammer, with a sickle as a sidearm.
Like others said before there's not really an advantage for you to dual wield, and those two implements don't really complement one another in a way you wouldn't be served better by almost literally any other weapon combination lol. The only advantages you'd get from wielding a sickle over a dirk or something like that are already provided by the hook on your warhammer.
E: also I think it's worth pointing out that IRL warhammers look very different from the hammer and sickle hammer or fantasy BS warhammers; most are closer to polearms than the big fuck-off maul type weapons in Skyrim