Did you think about modularity with Gun Goddess Miss Fortune?
Saw a concept on Reddit that made me think. Since this skin is supposed to be like customizable exosuit (custom model, at least), wouldn't one possibility be to make each individual part of it customizable? Want one gun to be this and other to be that? Just switch both! This could be great new mechanic for an ultimate skin if pulled off successfully.
Link to post: https://www.reddit.com/r/leagueoflegends/comments/82m7n5/i_used_my_amazing_paint_skills_to_show_my_modular/
What do you guys think?
Edit: Also, no PROJECT interactions? I'm slightly mad :|

