I modified one of my favorite themes.
I made the scrollbars really skinny like the new 'light themes' in Natty. I removed the scrollbar arrows and the scrollbar grip.
I also changed the menu arrows to the smaller, filled arrows and added a hack to the gtk file to make the menus open instantly.
The wallpaper is a default Ubuntu wallpaper that was redone in Gimp to make it a little darker (so my Conky would be more visible).