I managed to pull out the sewing machine a few weeks ago to make these cute little pillows for some armchairs.
They are very easy to make, some basic steps below:
To make the pillow insert, I simply sewed two pieces of fabric together and then filled with stuffing. Close the pillow insert by sewing the remaining opening.
Cut 2x pieces of square fabric
Sew 3 sides together
Attach buttons or some other fastener of your choice to the fourth side for easy removal of case