ZOMG, another Welcome to the NHK fan!
It's one of my favorite series!
I'd been giving some thought to cosplaying from it, but my issue was that everyone seems to really wear, well, normal clothes that wouldn't be recognized as cosplay. *shrug* I think Misaki's clothes would be distinctive enough, and of course Pururin would, but for everyone else I don't know - though if they were grouped together with someone with a distinctive outfit I think it would of course be recognizable. By themselves, I think not so much. Unless they had props...
That's probably just me being weird, though. If it's not complicated enough to give me headaches I generally don't do it, haha.