We need the limb swap

With whom, though? Or what...

I think they mean armlegs and legarms

These are good swaps to make!

There's some engagingly weird body plans in the Sparky Watts comic book adventure 'The Kingdom of the Talking Bugs', the cover feature on https://comicbookplus.com/?dlid=21630 (story starts on page 13). Though they might not translate well to crochet.

one leg. that's all. no torso either just head and leg

easy.

tauroborus. not sure how you'd do that but it's fun to say

i'll think on this...

......

Clam

pondering this.

turn nak into a cube
if it happened before - two cubes

cubed!