FREEBIE (dot grid svg) and a fun simple set like the mitten we used for Nordic Christmas.
Begin by bringing in the object you want to cut into your cutting program. We use and love Make-the-Cut. Then bring in the grid, which you can separate and make however many pixels wide and long as you like.
mitten out. And thread some yarn into a tapestry needle or if your child is doing grab one of those plastic ones. And stitch away!