"Are you looking for icons, backgrounds, color schemes,
window decorations, system sounds, or entire themes? KDE-Look.org
("EyeCandy for your KDE Desktop") provides exactly that. While
relatively low on quantity, quality is very high. The layout and
interactive nature of this site indicates that it may very well
wind up being a central resource for the kind of user who likes to
change his colors, icons and look every hour. It also has sections
for skins for Noatun and other KDE apps."