I'm planning to put some of my CDE icons and actions here. This will take some time, though, because I'd like to make everything consistent.
For a start, here are the icons I'm using. You can see some of them on the right. Most of them exist only in one size, the filenames are very messy, and the quality is, ahem, mixed. If you're making improvements, please send them back to me, so everybody can use them.