I had this idea when I saw at the store this kind of cotton fabric with stripes, reminded me back to school notes, and I create this kid's pillow case (I have to confess that this is for me!).
I first painted with markers for fabric these childish drawings, then ironed it, and sewed in hand the fabric, make this simple pillow case.
This was so fun! You can let your children draw the fabric with suitable markers and make pillow cases with their creations!