Unhide utilities is a set of 2 applications for changing the visibility of files and folders.

Unhide Desktop Folder
This tool allows you to make the Desktop Folder visible in the network again if you've installed OS 9.1 or 9.2, which has made it invisible on the network. Just drop your volumes onto this tool and their Desktop Folders will re-appear when seen as mounted AppleShare volumes.

Additional feature: You can also have the folder renamed so that it appears like any other folder in the root dir of your hard disk. The items will then, of course, disappear from your desktop area, but you can always move them back there again (for this feature, hold down the Option key when dropping a volume onto this tool).

Change File Visibility
This tool allows you to make any hidden file or folder visible, or hide them again. This is very handy to get rid of all the OS X files and folders that come pre-installed on your Macs nowadays: Simple drop your hard disk icon onto this tool, and you will see all items on the root of your disk. Change the checkboxes for all hideen items such as dev, bin, etc to make them visible, then use the Finder to move them all to the Trash.