Name That Bodypart

Okay, managed to throw together a pic. It's past midnight, but in Rennie World, the new day doesn't come until you sleep and wake up, or you see the sun rise -- whichever happens first.

Thus, it's still thurs, so happy HNT!

But now I'm exhausted, so I must sleep. Y'all, those of you still awake, make it one worth remembering, 'kay?