So I made one.
I used this pattern from Jennie at cloverandviolet.com I found some orphan chevron strings and quilted it up with a canvas back for the cover.
I used this Cloud 9 organic for the inside, and modified the pattern to use fabric triangles to hold the Nook instead of elastic (mostly because I couldn't find any elastic in my drawers...) I probably should have made the triangles a little smaller, but I haven't had any issues with readability in the corners yet. I'm also not fond of seeing the canvas between the pockets, so I may stitch in a patch down the middle.
The full outer cover, bound in Kona Navy. I still need to figure out a closure for it, I'm thinking some sort of magnetic snap. I'm not terribly fond of Velcro.
It was a really quick project, especially with using orphan blocks for the cover. It is sturdy, and should protect my Nook for awhile.