EDIT: To all the people from stumbleupon: The download button is at the top on the right side
Here are some folder icons for you. You can modify them as you wish and use them to create your own icon pack.
I did this in Photoshop CS5, I'm not sure if the file is completly compatible with older Photoshop versions, please note me if there are any problems!
// Notify me upon usage via note or comment
// Do not, redistribute my work or claim it as your own
// Do not use my work for commercial use
// Please credit me in the description (not necessary but highly appreciated)
Thanks for viewing, downloading and using my stuff, I hope you will find the icons useful!