I knit myself a slipcover for the Kindle. It's very handy when you want to slip the device into a purse or tote bag. I used sock yarn so it wouldn't be too bulky and keeping to the "Amazon" theme, the pattern calls for Opal Rainforest yarn although I actually used another Opal colorway in the model.
The pattern is available on my blog.
Jan
The Kindle Reader
http://kindlereader.blogspot.com