Now, to blend that gap...
Cut a scrap piece of fabric that’s the same color as your pillow
forms, long enough to wrap around them.
Use hot glue to secure the raw edges to each side of the gap,
directly to the pillows. Secure it around the front, bottom, and
back, but leave the top open for now.
While this isn’t as permanent as sewing, it works perfectly fine
as the whole thing will be contained inside our pillow case soon.