Because I'm a little crazy for the Lego, and because I had already built one for my cell phone, I decided to build myself a cradle for my 500 Reader out of Lego bricks and the original charging cable. It's specifically designed to fit the Reader with the original cover, since that's what I use.
I've included some (shoddy) pics of the cradle, along with the file from LDraw (a Lego CAD program). I had wanted to include the step-by-step instructions like Lego does, but I got sick of fighting with the program to make it create them, so I gave up on that.
If anyone's interested, I'd estimate the cost of bricks to be about $30 or so. Some of the bricks weren't available from
www.lego.com, so I got a lot of them from
www.bricklink.com.