Why didn't I think of this?
So many times I wanted to scratch my entire scalp until it turns into mulch with one clean swipe. Now it's possible.
The Head kenza, From japan, has 92 "not to hard, not too soft" plastic bristals to put your head into instant ecstasy.
I can remember so many times growing up my Mother would ask me to scratch her head with that old comb that was missing teeth. Man, I could of used this.