There was this webcomic I read a few years ago; it was about a female MC who could get powers from wearing cosplay outfits (With a story line about an evil costume she made and sold retaining this aspect and causing havoc)
It was a modern day earth, She kept a haruhi suzumiya costume "just in case", and I think it was finished. It wasn't some massive adventure comic, I think it took place mostly inside conventions.
Had a coworker, while trying to pass time ask me "If you could get the powers of whoever you wore a costume of, who would you chose?" I mentioned I read a webcomic with that exact prompt, and couldn't remember it.
please help, and Thank you! My google-fu has failed me. (spent too long trying to find it in different places. Next stop is trying to recover some old firefox history...)