I tried to keep this project very simple, because frankly...my back hurt, my right ribs hurt, and it was uncomfortable sitting on the floor. Ahh the joys of the third trimester!
I laid the pillow on the dress and starting cutting.
I turned the fabric inside out and pinned around the pillow on three sides. I pulled the pillow out and sewed the three pinned sides.
I turned the pillow cover right-side in and stuffed the pillow back inside. I carefully sewed the third side closed.
I repeated these steps for a smaller pillow.
And now I have two pretty darn cute pillows.