OCs are cool, and if the costume looks cool, I'll probably ask them for pictures and such too.
As for my OCs? I could possibly cosplay them... however, they all have pretty "normal", casual clothing, so I would likely have to do something else... they are animals(as in anthros/furries), so... animal ears and tail? But then, people might mistake me for "just another person in neko ears" or something.. body paint would be good for that, but I don't really like wearing it, so... Yeah, it's all about making people see you're actually a character, made by yourself or otherwise.
In progress: Aoba Suzukaze (New Game) | CATS (Zero Wing)
Possible plans: Chiaki Nanami (Dangan Ronpa) | Namco (Consolers) | Undyne (Undertale)
My webcomic, Consolers. It's about game companies