There's a guy with a permanent booth at a local flea market, and it's absolutely covered in the most mallninjashit material you can possibly imagine, and the guy wears a trench coat, and a fedora.
When you talk to him, he's a totally normal dude who started doing this when he was a teenager and actually dressed like that unironically, but now it's basically his sales outfit. "playing the part" as it were. Outside the market you might not even recognize him