In the process of creating one, unfortunately my screen isn't that great so I have to pretty much create all the components based off reference images instead of stitching screenies like I wanted to. Oh well, it gives me more flexibility. (Uh, this wasn't in response to Snowman btw).
The purple Mob is me in my current skin (except without headphones). The background is completely custom except the clouds are a vectorised copy of the actual clouds.png file from the client. It took about 7 minutes to make, but there was lots of preparation afterwards, like the resizing, creating the preview, the buttons, etc. I hope you enjoy!
PS. 1920x1200 and 1280x800 are wide screen, 1280x1024 is 4:3 ratio (I think).
Edit: I think I may have uploaded the wrong image in the 1280x1024 version! I'll fix it and update this post when I've done that.