I read this fanfiction a guy named Dr3aMz about an OC character who was able to blend in with the Original RWBY series for a little while.
The character's name is Ash and he is a former criminal/thief who was taken into Beacon Academy. He make any kind of weapon he copies as part of his semblance out of dust.
I don't care if you hate it or like it; I just want people to see what kind of fanfiction this is, then that would be really appreciative to the author Dr3aMz. I hope you can have the time to read this. The link to the fanfiction is at the bottom of the post: