First off, I'd like to say that I love your work-- you've made a lot of really impressive stuff. Keep it up!

My suggestion is an Iriquois Pliskin costume for Snake's 02 slot in PM.
http://vignette3.wikia.nocookie.net/super-smash-bros-iv-fanfiction/images/1/17/Pliskin.png/revision/latest?cb=20131021085426

Brawl also has a Pliskin trophy if that helps for reference.