Well Erno, that's what I mean. Can't SoCM zombie torsos, and once the torso's rotted away, it's just a few artificial limbs lying about, of no use at all.
...to attach to other zombies! And of course to sell for lots of money
The only monsters I know that can SoCM their torsos and heads are golems.
God I wish the golem torsos wouldn't disappear... you could try making a golem body with zombie head monster with all sorts of limbs, but I still have to test if the head works on a different body first... and it's harder than you think to behead 2 enemies close to each other, let alone behead 2 when you've just started off, and WM hasn't helped.
EDIT: Just found out you can use a wand of resurrection to grow new limbs if they fall off.
EDIT2: Also found out you can use a scroll of repair to heal artificial limbs