Check out this interesting hair brush.  These take the style of a typical hair brush and remove the handle, making the back of the brush part where you hold.  They are small and great for traveling.
I love the style and idea of this brush, however my 12 year old daughter did complain that the bristles are more firm than she’s used to.  She suggested using the brush for the dog- which may be an idea.

Other than that, the brush fits comfortably in your hand and makes it easy to hold and brush hair.

These come in multiple colors and 2 different sizes.

You can see more, and order one for yourself at: http://www.knotgenie.com/