I learned at a young age back in North Wales, they started us on basic stitches using large cross stitch fabric. We made a bag to hold our PJ's in. (I still have it somewhere). Had to decorate with decorative stitching (******//////++++++\\\\\*******), all repeats so you get the gist of it. You could use a marker and draw out a design on it and then he could follow it too. Fold into 3rds and straight stitch/ running stitch---------, up the sides to create pouch and keep the flap from unraveling.