Trace letters and words with finger in sand paper, onto a drawing app on a tablet using a finger or using the full arm to draw into the air. The tactile experience helps and makes it large motor with swooping gestures rather than the fine motor of holding a pencil.
For phonics, you might ask about using Wilson. It is geared for dyslexics. There are other similar programs as well.
For artwork, suggest a paint program or app. My kiddo used to make characters from the shapes in PowerPoint in kinder rather than draw freehand.
