Tablet computers need protection from dropping and crushing. You can easily blow a good chunk of cash on a manufactured cover, or you can make something just as effective – and much cooler – by gutting an old hardcover book.
To begin, take your tablet on a shopping expedition to your local used bookstore. Cruise the aisles until you find a book of the desired width and height, and something with a spine that's just a bit thicker than your tablet.
Use a sharp razor knife to cut a tablet-sized rectangle in the pages themselves. This part of the job is time-consuming depending on the number of pages you have to remove. Once you're done cutting, use a small paintbrush to apply hobby glue to the cuts to make the pages stay together.
After the glue is dry, you can just drop your tablet into place. For extra security, you may want to attach small Velcro strips from the cover to the first page to keep the book shut if (or when) you drop it, ensuring that your tablet stays safe within the pages and not on the hard, heartless concrete sidewalk.