I found an impressive (but macabre) cover for my Nook.
My Nook has a
Industriell Cover. Its useful feature is that it clips onto the Nook in the upper and lower left corners. It does not attach on the right side at all.
The Grichels make bizarre leather goods with faces on them.
http://www.grichels.com/
http://www.etsy.com/shop/grichels
They were at a local Craft Faire I attended. I discovered that their Small Journal/Sketchbook fits perfectly over the Industriell cover.
Now, this is not cheap. The Industriell is about $30, and the Grichel cover is about $85. But my Nook looks incredible!