I see your blackwings and I raise you my mechanical contestant - the uniball kuru toga. The rotating lead gimmick actually works pretty well and the elite has just such a nice weight to it because the barrel is this nice knurled metal thing (I think the advance upgrade is also metal, but I don’t have that one to compare)
Speaking of uniball, while I’m normally a fountain pen adherent, my go to non-fountain pen is the uniball eye. Such a surprisingly nice pen for the price, and while it’s not exactly the same, because it’s a liquid ink roller ball it’s still much nicer to write with because you don’t have to apply pressure to make it write.