Here's my Sony Prs-T1 in it's new Decalgirl skin. Green Lacquer. Didn't want any bright colors distracting from the screen, just wanted to get rid of the shiny plastic look. I think it's not bad.
I got a mini Oberon slip case designed for Kindle 4 but fits the Sony nicely, because the K4 is a bit wider than the Sony it allows me to slip the stylus into the side, (not that I use the stylus but it's there if I want it).