if this child can hold an object at all, one thought for assistance with
drawing tools comes to mind.
There is white, air-dry clay...i can't remember the name but I am sure
someone knows what I am talking about. It reminds me of marshmallow
fluff. :) that can be wrapped around a pencil and molded to fit this,
or any, child's hand.
Sorry I dont have more, but that is what comes off the top of my head.