I took a fat quarter and lay the album on top of it. I cut around the perimeter, giving an extra 3 inches on either side and an extra inch on the top and bottom. I then sewed up the edges.
I then measured where the fold would be on both ends, pinned it and sewed up the line. I checked to make sure the fit was good.
I finished it off by hand sewing his first initial, "B" with embriodery thread. I'm not great at this yet, but I think it worked out okay.
The word back from his mom was that he loved the album, especially the B on it.