Have you noticed how, with stacks in leopard, the folder or file that is the first in alphabetical order is the head icon of your stack? For instance, in my Applications Folder stack, the Address Book icon is the frontmost icon. Kind of annoying.
TUAW has posted that some Japanese guy has created a series of icons - one for each main folder on the Mac (Applications, Downloads, Home, Desktop, etc.). Each icon is a "drawer" - a semi-transparent, silver drawer shaped icon with a specific folder's icon on the front of it. By placing the icon in your stack, it becomes the front icon, changing the look of your stack. I added them to my dock, and they look pretty nice.
See TUAW's
post.