What type of room, has no walls, windows, or door. Nor ceiling or floor?

I have a nose, but I do not have a legs. I am often seen in a scarf.

I look like an adult male giggling uproariously, but really I'm a tragic death from something gone wrong horribly.

I'm a sponge who soaks up fun, In a pineapple, my home is won. My best friend's a star, Who's always near and far. Guess who I am!

I live in a can, and I sound like a man, but, I'm rough and grumpy, but what else with a hand up my stump; I live on a street, where all things end well, lot's of singing and counting with toys to be sold.