Choose the pieces you want to use for the front and back of your pillow. Line them up so the good sides are facing each other. You will be sewing your pillow while it is inside out.

Pin your two pieces of fabric together along the edges as demonstrated. Trim so your two pieces are the same size and your edges are even.

Mark the opening you will leave to flip your pillow right side out and stuff it. The opening should be about the size of your hand and should be along the bottom edge of your pillow. Use pencil, not marker.

Flip your pillow right side out. Use your fingers or the eraser end of a pencil to square out your corners. Check for holes along your seams as you go. Fill your pillow with stuffing!

Use a hand needle and thread that closely matches your fabric (not the high contrast thread I use in my demo). Use a whip stitch to sew your pillow closed by hand. Cut a piece of thread that is as long as your wing-span (hand to hand with your arms outstretched). Thread your needle. Even out the two threads. Tie a knot on the opposite end of the needle. A whip stitch always goes in the front and out the back. Keep your stitches small and close together.