I'll admit it. I run around my college campus dressed up like Louie. (except the white pants... for now.) Having frizzy curly hair rocks.
However, something bugs me...
What does Louie wear around his neck?
I've always thought it was his room key and found a key the right shape that I wear. ("Hey, Trillian, why are you wearing a key?"
"Just because." XD)

Am I right? Or is he wearing something else? I've seen fan art that shows him wearing a tassel like thing...

I dunnoos, but leik, but when I first saw ittt, I thought he was shirtless, and just had a necklace wrapped around his neck twice D:

I always thought it was a necklace :3

I've really been wondering about it, too.

Actually, I also assumed it was a key, but I never got why he would wear a key. >.> I'm just gonna say it's a random pendant of sorts. Although, I'd totally wear a key around my neck. XD

haha, I've squinted reeeally hard at it before too. XD
I came to the conclusion that it's a key, because I don't know what else it could be : /
A master key, perhaps? ... Somehow?

It leaves much room for the imagination ...