For amny years I have wanted a Sock Knitting Machine (A Sock Printer) so I could print (knit-print, not graphics) out a fresh pair of socks at will - and a heat lamp attachement - so it spits out a fresh, Warm pair of socks.

Anyway -- there is an amazing piece of software (not free) called "Marvelous Designer" which is like Sketchup For Garments.

Its pretty darn amazing.

https://www.youtube.com/@Marvelousdesigner/videos

It is used for real garment design - but it also can be used for Game Avatars, or CosPlay quite well.