It's definitely a custom/ modification that requires minimal effort. Surprised it's not being done more.
I've been getting my New X-Men squad finished up. Something I've been slowly putting parts together for in the last few weeks. Jean, Cyclops and Wolverine have a few simple mods (still looking for more suitable hair for wolvie, something that more closely matches quitely's design), while Xavier, beast and Emma consist of a few relatively simple part swaps and some simple painting. Pretty happy with how these are turning out, especially considering the age of the parts being used in the majority of them. The puffy "x" jacket actually still holds up pretty well, despite coming from a period when minimates were super simple in design.