Twin directories of icons:

[DIR]  ftp://ftp2.sk.freebsd.org/tucows/themes/images/shots/icons/
[DIR]  ftp://ftp.skynet.be/mirror1/tucows.skynet.be/themes/images/shots/icons/
[DIR]  ftp://ftp.espci.fr/incoming/DAVIDPHP/EasyPHP/apache/icons/
[DIR]  ftp://ftp.zcu.cz/pub/win/winsite/winxp/icons/
[DIR]  ftp://ftp.agt.net/pub/winsite/win95/icons/
[DIR]  ftp://ftp.agt.net/pub/winsite/winxp/icons/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/mirror/WinSite/win95/icons/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/mirror/WinSite/winxp/icons/
[DIR]  ftp://ftp.apple.asimov.com/pub/apple_II/images/gs/os/gsos/icons/
[DIR]  ftp://ftp.zcu.cz/pub/win/winsite/win95/icons/
[DIR]  ftp://ftp.us.es/Mirror/www.winsite.com/win95/icons/
[DIR]  ftp://ftp.mtu.ru/.4/NetBSD/NetBSD-release-3-1/src/dist/ntp/html/icons/
[DIR]  ftp://ftp.mtu.ru/.4/NetBSD/NetBSD-release-3-1/src/dist/ntp/html/drivers/icons/
[DIR]  ftp://ftp.esat.net/mirrors/.3/ftp.netbsd.org/pub/NetBSD/NetBSD-release-3-1/src/dist/ntp/html/icons/
[DIR]  ftp://ftp.esat.net/mirrors/.3/ftp.netbsd.org/pub/NetBSD/NetBSD-release-3-1/src/dist/ntp/html/drivers/icons/
[DIR]  ftp://128.118.2.96/pub/.mirrors/1/ftp.netbsd.org/pub/NetBSD/NetBSD-release-3-1/src/dist/ntp/html/icons/
[DIR]  ftp://128.118.2.96/pub/.mirrors/1/ftp.netbsd.org/pub/NetBSD/NetBSD-release-3-1/src/dist/ntp/html/drivers/icons/
[DIR]  ftp://ftp.lug.udel.edu/pub/netbsd/NetBSD-release-3-1/src/dist/ntp/html/icons/
[DIR]  ftp://ftp.lug.udel.edu/pub/netbsd/NetBSD-release-3-1/src/dist/ntp/html/drivers/icons/
[DIR]  ftp://147.52.159.12/mirrors/gnupg/related_software/gpa/icons/
[DIR]  ftp://ftp.gva.es/coic/.kde/share/icons/
[DIR]  ftp://ftp.gva.es/mastin/.kde/share/icons/
[DIR]  ftp://ftp.gva.es/mastinsan/.kde/share/icons/
[DIR]  ftp://ftp.asu.ru/incoming/BELIKOV/adm backup/server/apache2/icons/
[DIR]  ftp://ftp.us.es/Mirror/www.winsite.com/winxp/icons/
[DIR]  ftp://ftp.yzu.edu.tw/mirror/pub1/GIS/grass/grass64/manuals/html64_user/icons/
[DIR]  ftp://ftp.yzu.edu.tw/mirror/pub1/GIS/grass/grass62/manuals/html62_user/icons/
[DIR]  ftp://ftp.yzu.edu.tw/mirror/pub1/GIS/grass/grass63/manuals/html63_user/icons/
[DIR]  ftp://ftp.yzu.edu.tw/mirror/pub1/Unix/Tex/CTAN/support/icons/
[DIR]  ftp://64.50.236.52/.1/vectorlinux/veclinux-current/source/gsb22-stable/src/desktop/gnome-menus-kde/usr/share/icons/
[DIR]  ftp://64.50.238.52/.1/vectorlinux/veclinux-current/source/gsb22-stable/src/desktop/gnome-menus-kde/usr/share/icons/
[DIR]  ftp://64.50.236.52/.1/vectorlinux/veclinux-current/source/gsb22-stable/src/networking/network-manager-applet/network-manager-applet/icons/
[DIR]  ftp://64.50.238.52/.1/vectorlinux/veclinux-current/source/gsb22-stable/src/networking/network-manager-applet/network-manager-applet/icons/
[DIR]  ftp://206.167.141.10/pub/appl/grass/grass64/manuals/html64_user/icons/
[DIR]  ftp://ftp1.sinica.edu.tw/pub4/GIS/grass/grass64/manuals/html64_user/icons/
[DIR]  ftp://147.52.159.12/mirrors/nongnu.org/emacs/icons/
[DIR]  ftp://ftp.br.debian.org/savannah-nongnu/emacs/icons/
[DIR]  ftp://ftp.nsu.ru/mirrors/ftp.freebsd.org/pub/FreeBSD/development/NetBSD-CVS/src/dist/ntp/html/icons/
[DIR]  ftp://ftp.nsu.ru/mirrors/ftp.freebsd.org/pub/FreeBSD/development/NetBSD-CVS/src/dist/ntp/html/drivers/icons/
[DIR]  ftp://198.31.87.8/pub/mtc/planning/models/POPSYNSF/controls/org.eclipse.ui.examples.javaeditor/icons/
[DIR]  ftp://ftp.loxinfo.co.th/mirrors/apache/mirrors/icons/
[DIR]  ftp://sunsite.mff.cuni.cz/MIRRORS/www.apache.org/mirrors/icons/
[DIR]  ftp://ftp.ps.pl/dsk0/www.apache.org/mirrors/icons/
[DIR]  ftp://ftp.cs.uu.nl/mirror/apache.org/mirrors/icons/
[DIR]  ftp://ftp.vslib.cz/pub/mirrors/apache.org/mirrors/icons/
[DIR]  ftp://ftp.powertech.no/pub/mirrors/www.apache.org/mirrors/icons/
[DIR]  ftp://ftp.cyf-kr.edu.pl/pub/unix/apache/mirrors/icons/
[DIR]  ftp://ftp2.au.freebsd.org/pub/grass/grass64/manuals/html64_user/icons/
[DIR]  ftp://ftp.linuxforum.hu/mirrors/zenwalk/i486/zenwalk-5.2/source/xap/mplayer/skins/Blue/icons/
[DIR]  ftp://ftp.gva.es/mirror/bouncycastle/www.bouncycastle.org/icons/