I get outfit envy a lot in games. Horizon Zero Dawn is a big one for me... Especially with some of the headgear others are wearing.
BG had the option through the editor mod (EEKeeper?) to swap character models, but the non-adventure ones had very limited animations. PF:KM likewise had a mod to allow choosing different outfits.
I seem to recall something similar in NWN2, a game where half the world was better dressed than I was.