Middle Earth Riddles: The Terror Continues

[Samwise]

Another simple one from Samwise:

I have a head, but no brain
generally, I have a smile on my face, but it dosen't necesarily mean that I'm happy.
I can have arms, but they are useless
With the rising of the sun, my life can end.

"You don't need to tell me that!" said Sam. "I came without any, and I've been worried ever since. But I was wondering what these were made of, knowing a bit about rope-making: it's in the family as you might say. "