I took a brown turtleneck from my scrap clothes pile and a lone bedsheet.
For the second one, I made a coverslip for the pillow from the bedsheet. The pillow was 19"x19" So I cut a piece of fabric 20" tall and 30" wide. (To get 30" I took the main size across, 20", and added two halves, 10" to come up with 30"). I should have only made it 19 1/2" tall since it came out a little loose.
Then you hem the short 20" edges and then fold them in, the edges overlapping each other until the width is 20" with the right side of the fabric on the inside facing each other.