Here is an educational video on them...

And here is a song to help you remember they are all around you

Hmm... well, I am an Elf from Iceland called Fred! I am quite interested in expanding my ability in saidin!

I liked brownies, but in the last few days I have eaten so many, now it not so much.

I used to know someone called Fred.

Fred, what are you going to take to wash down all those brownies? Tainted Rum or Tainted Tea?