Funny thing is, I haven't read Warbreaker(I've heard there's stuff in there that I'm not entirely comfortable reading). I do know a bit about the magic system, though. So I get what you mean.
Hehehehehehe...
Story time?
Story time.
My history teacher had a stockpile of... you guessed it! Pencils. But kids kept taking them, and the district wasn't buying pencils for when ANYONE lost a pencil, so she ran out. Thus, she requested pencil donations. My mom gathered pencils from our house, and put them in a bag for me. So I took them to school, and the teacher was so grateful that she gave me candy. Later, walking down the hall, I remarked to my friends, "I don't deserve these, I'm just the... uh, the pencil... taxi." And they were like, "That's your nickname now".