Icons

The majority of these files are not indexed and will not be.  The filename gives a fairly accurate description of what you are getting.  Most are simply icons you can paste to spice up your desktops looks.

Folder Icon Maker 2.0 shareware $15  Combine icons and export to different formats.
Narattaphol Charoenphandhu, naratt@naratt.com, http://www.naratt.com
Requirements: G3 or faster Mac, Mac OS X 10.3 or later
Spunk up your interface with custom icons. This app provides an easy way to create custom folder and file icons instead of using the old John Doe and Plain Jane ones. It supports drag-and-drop, features picture-to-icon creation, live icon resize, and more. Icons can be viewed in OS X or Classic.

IconBuilder 8.5.2 shareware $79 Adobe Photoshop effects filter helps you create icons with ease.
Iconfactory, IconBuilder@iconfactory.com, http://www.iconfactory.com
Requirements: Mac OS X 10.3.9 or later (10.4 or later for Intel) and one or more of the following: Photoshop 7 or later, Elements 2 or later, or Macromedia Fireworks. Adobe Creative Suite 3 required for Intel.
IconBuilder is a filter available for both Macintosh and Windows platforms that makes creating icons a snap. By harnessing the professional power of  your existing image editing software, IconBuilder provides icon artists with the most complete tool set possible for modern icon design. IconBuilder 8.0.1 expands the professional feature set that users have come to rely on for constructing modern icons. IconBuilder is especially designed for use with Adobe Photoshop CS or Macromedia Fireworks MX 2004 and Mac OS X. IconBuilder's ease of use, in combination with the power of Photoshop / Fireworks, gives artists unequalled flexibility and creativity when constructing icons for the Macintosh or Windows operating systems. 

IconIt X 1.5  shareware Change multiple file/folder icons fast.
Requirements: Mac OS X 10.3 or later
definingDesign, a developer of high-quality Mac OS X software, is announcing the release of IconIt, a new version of the popular icon tool built specifically for OS X 10.2 Jaguar. The original version of IconIt (1.0) is still available for OS X 10.1 users. (See 'Related Links', below) If you like to have a lot of cool icons on your files and folders, IconIt will save you hours of copying and pasting icons from one file to another.

Img2icns 1.2.2  freeware  Convert images to .icns files, Pro version available.
http://www.img2icnsapp.com/
Requirements: Mac OS X 10.5 or later
Img2icns is a simple, quick application to convert images to icons or icons to images, keeping them orderly filed and ready to use.

MINIUM Free 76 very sharp complete system replacement icons.
REQUIREMENTS Mac OS X 10.0 or later.
76 very sharp complete system replacement icons. MINIUM° is a set of 76 icons that represent all of the System replacement icons. It also includes bonus hardware icons for the Mac mini, G5 tower, iPod generations, and iPod shuffle. A Pixadex iContainer version is available for auto-installing using Pixadex.