I saw that someone posted a Kindle cover, so I figured my nook cover would be a good first finished project to post. I have a tutorial here: http://www.cutoutandkeep.net/projects/hand-made-ereader-cover
The cost of an eReader cover is outrageous. Using stuff I already had laying around, I made an great, sturdy cover. I'd say it's about as tough as a hardback book. The cover opens up and folds all the way back, so it's still easily held in one hand. I'm still working on how to secure the nook into the case. Most of the front of a nook is either the reading screen or the touch screen, so elastic isn't a great idea. I could put some velcro on the back, but I'm just not ready to do that yet, lol. This is definitely not water proof.
For that, I just put my nook in a plastic food storage bag that has double zippers. It's not foolproof, but it's better than nothing, if it falls in the tub!
My nook sits in here nicely, and the padded vertical sides help keep it cushioned whether it's open or shut. The front is also padded, and all of the interior is lined in velvet. Now I don't have to worry about the screen getting damaged or gunk getting in the buttons. This fits in my purse nicely, and holds up well to all sorts of bumps and falls.
I lined the outside with some denim salvaged from an old pair of jeans. The seam from the jeans gives the spine a bit more stiffness, though the inside is reinforced with heavy cardboard.
I made sure to leave a space open so I can plug in the USB cable even with the cover shut. At some point I'm going to add a small flap to cover this space when not in use. Aside from this one spot, my cover closes around tightly enough to keep out the crumbs and gunk that seem to accumulate in my purse.
The flap can be tucked between the front and back covers when fully opened. The snap is just an old one I salvaged from a pair of my kids' jeans.
This is how it looks when opened and folded back.