I think that the idea of the original subject of icons of Kinternet is good, based on a plug that is connected, but the plug is ugly, for that reason creates this simple subject of icons, that I think is prettier.
$ cd [path where unloading the package]
$ tar xvzf kinternet-plug-icons-0.1.tar.gz
$ cd kinternet-plug-icons
# cp *.png /opt/kde3/share/apps/kinternet/icons/hicolor/22x22